New York - Trade unions and other groups are staging rallies around the world to mark International Workers Day.

May 1 is celebrated by many labor unions and workers worldwide. May Day is generally a public holiday in many countries.

A look in photos at some May Day events:

Participants of the traditional May Day celebrations, organized by the Austrian Social Democrats, SPOE, and trade unions walk with a flag in Vienna, Austria, on Sunday, May 1, 2016. Every year around hundred thousand citizens participate the event. (Credit: AP)Participants of the traditional May Day celebrations, organized by the Austrian Social Democrats, SPOE, and trade unions walk with a flag in Vienna, Austria, on Sunday, May 1, 2016. Every year around hundred thousand citizens participate the event. (Credit: AP)

Participants of the traditional May Day celebrations, organized by the Austrian Social Democrats, SPOE, and trade unions walk with flags and banners in Vienna, Austria, Sunday, May 1, 2016. Every year around hundred thousand citizens participate the event. (Credit: AP)Participants of the traditional May Day celebrations, organized by the Austrian Social Democrats, SPOE, and trade unions walk with flags and banners in Vienna, Austria, Sunday, May 1, 2016. Every year around hundred thousand citizens participate the event. (Credit: AP)

Russians play accordions as they walk near the building of the Federal Security Service (FSB, Soviet KGB successor) in Lubyanskaya Square to mark May Day in Moscow, Russia, Sunday, May 1, 2016. As in Soviet times, about one hundred thousand of cheerful workers paraded across Red Square despite a chilly rain, but instead of red flags with the Communist hammer and sickle, they waved the blue flags of the dominant Kremlin party and the Russian tricolor. (Credit: AP)Russians play accordions as they walk near the building of the Federal Security Service (FSB, Soviet KGB successor) in Lubyanskaya Square to mark May Day in Moscow, Russia, Sunday, May 1, 2016. As in Soviet times, about one hundred thousand of cheerful workers paraded across Red Square despite a chilly rain, but instead of red flags with the Communist hammer and sickle, they waved the blue flags of the dominant Kremlin party and the Russian tricolor. (Credit: AP)

Russians wave flags and cheer as they walk on Red Square to mark May Day in Moscow, Russia, Sunday, May 1, 2016, with the St. Basil's Cathedral, left, and Spasskaya Tower, right, in the background. As in Soviet times, about one hundred thousand of cheerful workers paraded across Red Square despite a chilly rain, but instead of red flags with the Communist hammer and sickle, they waved the blue flags of the dominant Kremlin party and the Russian tricolor. (Credit: AP)Russians wave flags and cheer as they walk on Red Square to mark May Day in Moscow, Russia, Sunday, May 1, 2016, with the St. Basil’s Cathedral, left, and Spasskaya Tower, right, in the background. As in Soviet times, about one hundred thousand of cheerful workers paraded across Red Square despite a chilly rain, but instead of red flags with the Communist hammer and sickle, they waved the blue flags of the dominant Kremlin party and the Russian tricolor. (Credit: AP)

Russians carry flags and cheer as they walk on Red Square to mark May Day in Moscow, Russia, Sunday, May 1, 2016. As in Soviet times, about one hundred thousand of cheerful workers paraded across Red Square despite a chilly rain, but instead of red flags with the Communist hammer and sickle, they waved the blue flags of the dominant Kremlin party and the Russian tricolor. (Credit: AP)Russians carry flags and cheer as they walk on Red Square to mark May Day in Moscow, Russia, Sunday, May 1, 2016. As in Soviet times, about one hundred thousand of cheerful workers paraded across Red Square despite a chilly rain, but instead of red flags with the Communist hammer and sickle, they waved the blue flags of the dominant Kremlin party and the Russian tricolor. (Credit: AP)

Taiwanese workers shout slogans Taiwanese workers shout slogans "Strive for Working Right, Want Indemnifier" during a May Day rally in Taipei, Taiwan, Sunday, May 1, 2016. Thousands of protesters from different labor groups protest on the street to ask for raising minimum wage and shorter working hours. (Credit: AP)

Participants march behind a banner reading 'Against Labour and Social Poverty: For a Decent Job and Rights' during the May Day rally organized by main trade unions UGT and CCOO on the streets of Barcelona, northeastern Spain, 01 May 2016. Labor Day or May Day is observed all over the world on the first day of May to celebrate the economic and social achievements of workers and fight for laborers rights. (Credit: EPA)Participants march behind a banner reading ‘Against Labour and Social Poverty: For a Decent Job and Rights’ during the May Day rally organized by main trade unions UGT and CCOO on the streets of Barcelona, northeastern Spain, 01 May 2016. Labor Day or May Day is observed all over the world on the first day of May to celebrate the economic and social achievements of workers and fight for laborers rights. (Credit: EPA)

Pedro Sanchez (C), the leader of the Spanish Socialist Worker's Party (PSOE), takes part in a May Day rally organized by the main trade unions UGT and CCOO in the streets of Madrid, Spain, 01 May 2016. Labor Day or May Day is observed all over the world on the first day of May to celebrate the economic and social achievements of workers and fight for laborers rights. (Credit: EPA)Pedro Sanchez (C), the leader of the Spanish Socialist Worker’s Party (PSOE), takes part in a May Day rally organized by the main trade unions UGT and CCOO in the streets of Madrid, Spain, 01 May 2016. Labor Day or May Day is observed all over the world on the first day of May to celebrate the economic and social achievements of workers and fight for laborers rights. (Credit: EPA)

Supporters wave flags during a speech of right-wing Austrian Freedom Party (FPOe) presidential candidate Norbert Hofer (unseen) at the FPOe May Day celebrations at the Urfahraner Jahrmarkt (Uhrfahr's fair) in Linz, Austria, on 01 May 2016. (Credit: EPA)Supporters wave flags during a speech of right-wing Austrian Freedom Party (FPOe) presidential candidate Norbert Hofer (unseen) at the FPOe May Day celebrations at the Urfahraner Jahrmarkt (Uhrfahr’s fair) in Linz, Austria, on 01 May 2016. (Credit: EPA)

Participants march during the May Day rally organized by the main Spanish trade unions UGT and CCOO in the streets of Madrid, Spain, 01 May 2016. Labor Day or May Day is observed all over the world on the first day of May to celebrate the economic and social achievements of workers and fight for laborers rights. Slogan on banner reads: 'Work and Rights'. (Credit: EPA)Participants march during the May Day rally organized by the main Spanish trade unions UGT and CCOO in the streets of Madrid, Spain, 01 May 2016. Labor Day or May Day is observed all over the world on the first day of May to celebrate the economic and social achievements of workers and fight for laborers rights. Slogan on banner reads: ‘Work and Rights’. (Credit: EPA)

People hold flags and banners during May Day celebrations in Istanbul, Turkey, 01 May 2016. Labor Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for labourers rights. (Credit: EPA)People hold flags and banners during May Day celebrations in Istanbul, Turkey, 01 May 2016. Labor Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for labourers rights. (Credit: EPA)

Protestors run away from tear gas after a small clash at the security point at the official place of May Day celebration in Istanbul, Turkey, 01 May 2016. Labor Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for labourers rights. (Credit: EPA)Protestors run away from tear gas after a small clash at the security point at the official place of May Day celebration in Istanbul, Turkey, 01 May 2016. Labor Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for labourers rights. (Credit: EPA)

Protestors run away from tear gas after a small clash at the security point at the official place of May Day celebration in Istanbul, Turkey, 01 May 2016. Labor Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for labourers rights. (Credit: EPA)Protestors run away from tear gas after a small clash at the security point at the official place of May Day celebration in Istanbul, Turkey, 01 May 2016. Labor Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for labourers rights. (Credit: EPA)

A woman dance during a protest of migrant domestic workers, demanding better work conditions such as minimum wage, on Labour Day in Beirut, Lebanon, 01 May 2016. Lebanon has a large, predominantly female, community for migrant domestic workers mainly from Asian and African countries. (Credit: EPA)A woman dance during a protest of migrant domestic workers, demanding better work conditions such as minimum wage, on Labour Day in Beirut, Lebanon, 01 May 2016. Lebanon has a large, predominantly female, community for migrant domestic workers mainly from Asian and African countries. (Credit: EPA)

 

Lebanese employees of a bakery look on as a protest of migrant domestic workers march by, demanding better work conditions such as minimum wage, on Labour Day in Beirut, Lebanon, 01 May 2016. Lebanon has a large, predominantly female, community for migrant domestic workers mainly from Asian and African countries. (Credit: EPA)Lebanese employees of a bakery look on as a protest of migrant domestic workers march by, demanding better work conditions such as minimum wage, on Labour Day in Beirut, Lebanon, 01 May 2016. Lebanon has a large, predominantly female, community for migrant domestic workers mainly from Asian and African countries. (Credit: EPA)

Filipino protesters clash with riot police during a protest marking International Labor Day near the US Embassy in Manila, Philippines, 01 May 2016. Thousands of Filipinos protested in demand for better labor programs and an increase in minimum wage for low-income workers. Labor Day, also known as International Workers' Day or May Day, is observed worldwide on 01 May. (Credit: EPA)Filipino protesters clash with riot police during a protest marking International Labor Day near the US Embassy in Manila, Philippines, 01 May 2016. Thousands of Filipinos protested in demand for better labor programs and an increase in minimum wage for low-income workers. Labor Day, also known as International Workers’ Day or May Day, is observed worldwide on 01 May. (Credit: EPA)

Filipino riot police use water cannons against protesters during a rally marking International Labor Day near the US Embassy in Manila, Philippines, 01 May 2016. Thousands of Filipinos protested in demand for better labor programs and an increase in minimum wage for low-income workers. Labor Day, also known as International Workers' Day or May Day, is observed worldwide on 01 May. (Credit: EPA)Filipino riot police use water cannons against protesters during a rally marking International Labor Day near the US Embassy in Manila, Philippines, 01 May 2016. Thousands of Filipinos protested in demand for better labor programs and an increase in minimum wage for low-income workers. Labor Day, also known as International Workers’ Day or May Day, is observed worldwide on 01 May. (Credit: EPA)

A Chinese tourist wears Chinese traditional Hanfu clothing in front of a portrait of Chinese revolutionary Sun Yat-sen in Tiananmen Square during the Labor Day in Beijing, China, 01 May 2016. The Labor Day public holiday begins from 30 April to 02 May 2016. Labor Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for laborers rights. (Credit: EPA)A Chinese tourist wears Chinese traditional Hanfu clothing in front of a portrait of Chinese revolutionary Sun Yat-sen in Tiananmen Square during the Labor Day in Beijing, China, 01 May 2016. The Labor Day public holiday begins from 30 April to 02 May 2016. Labor Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for laborers rights. (Credit: EPA)

South Korean Confederation of Trade Unions (KCTU) protesters scuffle with police as they march towards the presidential residence during a rally marking Labor Day in Seoul, South Korea, 01 May 2016. According to reports, some 15,000 protesters gathered to demand labor policy improvements and the resignation of South Korean president Park Geun-Hye. Labor Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for laborers rights. (Credit: EPA)South Korean Confederation of Trade Unions (KCTU) protesters scuffle with police as they march towards the presidential residence during a rally marking Labor Day in Seoul, South Korea, 01 May 2016. According to reports, some 15,000 protesters gathered to demand labor policy improvements and the resignation of South Korean president Park Geun-Hye. Labor Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for laborers rights. (Credit: EPA)

South Korean Confederation of Trade Unions (KCTU) protesters gather during a rally marking Labor Day in front of the in Daehakno in Seoul, South Korea, 01 May 2016. some 15,000 unionists of protesters gathered to demand governmen's labor policy improvement and resignation of South Korean president Park Geun-Hye. (Credit: EPA)South Korean Confederation of Trade Unions (KCTU) protesters gather during a rally marking Labor Day in front of the in Daehakno in Seoul, South Korea, 01 May 2016. some 15,000 unionists of protesters gathered to demand governmen’s labor policy improvement and resignation of South Korean president Park Geun-Hye. (Credit: EPA)

South Korean Confederation of Trade Unions (KCTU) protesters gather during a rally marking Labor Day in front of the in Daehakno in Seoul, South Korea, 01 May 2016. According to reports, some 15,000 protesters gathered to demand labor policy improvements and the resignation of South Korean president Park Geun-Hye. Labor Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for laborers rights. (Credit: EPA)South Korean Confederation of Trade Unions (KCTU) protesters gather during a rally marking Labor Day in front of the in Daehakno in Seoul, South Korea, 01 May 2016. According to reports, some 15,000 protesters gathered to demand labor policy improvements and the resignation of South Korean president Park Geun-Hye. Labor Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for laborers rights. (Credit: EPA)

A participant marches in the streets of Zurich during labor day demonstrations, Switzerland, 01 May 2016. Labor Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for laborers rights. (Credit: EPA)A participant marches in the streets of Zurich during labor day demonstrations, Switzerland, 01 May 2016. Labor Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for laborers rights. (Credit: EPA)

Filipino protesters clash with riot police as water cannons are sprayed during a protest marking International Labor Day near the US Embassy in Manila, Philippines, 01 May 2016. Thousands of Filipinos protested in demand for better labor programs and an increase in minimum wage for low-income workers. Labor Day, also known as International Workers' Day or May Day, is observed worldwide on 01 May. (Credit: EPA)Filipino protesters clash with riot police as water cannons are sprayed during a protest marking International Labor Day near the US Embassy in Manila, Philippines, 01 May 2016. Thousands of Filipinos protested in demand for better labor programs and an increase in minimum wage for low-income workers. Labor Day, also known as International Workers’ Day or May Day, is observed worldwide on 01 May. (Credit: EPA)

Filipino riot police stand guard during a protest marking International Labor Day near the US Embassy in Manila, Philippines, 01 May 2016. Thousands of Filipinos protested in demand for better labor programs and an increase in minimum wage for low-income workers. Labor Day, also known as International Workers' Day or May Day, is observed worldwide on 01 May. (Credit: EPA)Filipino riot police stand guard during a protest marking International Labor Day near the US Embassy in Manila, Philippines, 01 May 2016. Thousands of Filipinos protested in demand for better labor programs and an increase in minimum wage for low-income workers. Labor Day, also known as International Workers’ Day or May Day, is observed worldwide on 01 May. (Credit: EPA)

French far-right political party National Front (FN) leader Marine Le Pen (C) lays a wreath at the statue of Joan of Arc during the party's traditional May Day rally in Paris, France, 01 May 2016. Labor Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for laborers rights. (Credit: EPA)French far-right political party National Front (FN) leader Marine Le Pen (C) lays a wreath at the statue of Joan of Arc during the party’s traditional May Day rally in Paris, France, 01 May 2016. Labor Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for laborers rights. (Credit: EPA)

Participants march during the May Day rally organized by All-Poland Alliance of Trade Union (OPZZ) and Democratic Left Alliance on the streets of Warsaw, Poland, 01 May 2016. Labor Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for laborers rights. (Credit: EPA)Participants march during the May Day rally organized by All-Poland Alliance of Trade Union (OPZZ) and Democratic Left Alliance on the streets of Warsaw, Poland, 01 May 2016. Labor Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for laborers rights. (Credit: EPA)

Anti-Islam protesters shout slogans during a speech by German Justice Minister Heiko Maas on the occasion of May Day in Zwickau, Germany, 01 May 2016. The placards read 'Here stands the pack. We demand referenda' and pictograms of a burqa, a mosque, Sharia law and the free trade agreements TTIP and TISA. (Credit: EPA)Anti-Islam protesters shout slogans during a speech by German Justice Minister Heiko Maas on the occasion of May Day in Zwickau, Germany, 01 May 2016. The placards read ‘Here stands the pack. We demand referenda’ and pictograms of a burqa, a mosque, Sharia law and the free trade agreements TTIP and TISA. (Credit: EPA)

Participants march with a large banner reading 'Unity, solidarity, human rights' during the May Day demonstration on Red Square in Moscow, Russia, 01 May 2016. According to reports, more then 90,000 citizens of Moscow attended the rally. Labor Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for laborers rights. (Credit: EPA)Participants march with a large banner reading ‘Unity, solidarity, human rights’ during the May Day demonstration on Red Square in Moscow, Russia, 01 May 2016. According to reports, more then 90,000 citizens of Moscow attended the rally. Labor Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for laborers rights. (Credit: EPA)

Anti-Islam protesters shout slogans during a speech by German Justice Minister Heiko Maas on the occasion of May Day in Zwickau, Germany, 01 May 2016. The placards read 'Here stands the pack. We demand referenda' and pictograms of a burqa, a mosque, Sharia law and the free trade agreements TTIP and TISA. (Credit: EPA)Anti-Islam protesters shout slogans during a speech by German Justice Minister Heiko Maas on the occasion of May Day in Zwickau, Germany, 01 May 2016. The placards read ‘Here stands the pack. We demand referenda’ and pictograms of a burqa, a mosque, Sharia law and the free trade agreements TTIP and TISA. (Credit: EPA)

Demonstrators carry a banner reading 'Time for more solidarity' during a May Day rally in Goettingen, Germany, 01 May 2016. Labor Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for laborers rights. (Credit: EPA)Demonstrators carry a banner reading ‘Time for more solidarity’ during a May Day rally in Goettingen, Germany, 01 May 2016. Labor Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for laborers rights. (Credit: EPA)

Turkish riot police arrested protesttors as they try to reach Taksim Square for an illegal May day celebration in Istanbul, Turkey 01 May 2016. Labour Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for labourers rights. (Credit: EPA)Turkish riot police arrested protesttors as they try to reach Taksim Square for an illegal May day celebration in Istanbul, Turkey 01 May 2016. Labour Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for labourers rights. (Credit: EPA)

Protestors clash with riot police as they try to reach Taksim Square for an illegal May day celebration in Istanbul, Turkey 01 May 2016. Labour Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for labourers rights. (Credit: EPA)Protestors clash with riot police as they try to reach Taksim Square for an illegal May day celebration in Istanbul, Turkey 01 May 2016. Labour Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for labourers rights. (Credit: EPA)

Protestors clash with riot police as they try to reach Taksim Square for an illegal May day celebration in Istanbul, Turkey 01 May 2016. Labour Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for labourers rights. (Credit: EPA)Protestors clash with riot police as they try to reach Taksim Square for an illegal May day celebration in Istanbul, Turkey 01 May 2016. Labour Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for labourers rights. (Credit: EPA)

Participants march during the May Day demonstration on Red Square in Moscow, Russia, 01 May 2016. According to reports, more then 90,000 citizens of Moscow attended the rally. May Day throughout the countries of the former Soviet Union traditionally celebrates the rights of the proletariat. (Credit: EPA)Participants march during the May Day demonstration on Red Square in Moscow, Russia, 01 May 2016. According to reports, more then 90,000 citizens of Moscow attended the rally. May Day throughout the countries of the former Soviet Union traditionally celebrates the rights of the proletariat. (Credit: EPA)

Participants march during the May Day demonstration on Red Square in Moscow, Russia, 01 May 2016. According to reports, more then 90,000 citizens of Moscow attended the rally. May Day throughout the countries of the former Soviet Union traditionally celebrates the rights of the proletariat. (Credit: EPA)Participants march during the May Day demonstration on Red Square in Moscow, Russia, 01 May 2016. According to reports, more then 90,000 citizens of Moscow attended the rally. May Day throughout the countries of the former Soviet Union traditionally celebrates the rights of the proletariat. (Credit: EPA)

Participants march during the May Day demonstration on Red Square in Moscow, Russia, 01 May 2016. According to reports, more then 90,000 citizens of Moscow attended the rally. May Day throughout the countries of the former Soviet Union traditionally celebrates the rights of the proletariat. (Credit: EPA)Participants march during the May Day demonstration on Red Square in Moscow, Russia, 01 May 2016. According to reports, more then 90,000 citizens of Moscow attended the rally. May Day throughout the countries of the former Soviet Union traditionally celebrates the rights of the proletariat. (Credit: EPA)

Indian labours and members of different trade unions took out a bike rally during International Labour Day celebration, in Bangalore, India, 01 May 2016. Labour Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for labourers rights. (Credit: EPA)Indian labours and members of different trade unions took out a bike rally during International Labour Day celebration, in Bangalore, India, 01 May 2016. Labour Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for labourers rights. (Credit: EPA)

A crowd of protesters rally for improvements in South Korean labor law in a public demonstration organized by the Korean Confederation of Trade Unions, the country's second-largest umbrella union, in downtown Seoul, South Korea, 01 May 2016. Labour Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for labourers rights. (Credit: EPA)A crowd of protesters rally for improvements in South Korean labor law in a public demonstration organized by the Korean Confederation of Trade Unions, the country’s second-largest umbrella union, in downtown Seoul, South Korea, 01 May 2016. Labour Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for labourers rights. (Credit: EPA)

Indian labours and members of different trade unions, hold flags at a rally during International Labour Day in Bangalore, India, 01 May 2016. Labour Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for labourers rights. (Credit: EPA)Indian labours and members of different trade unions, hold flags at a rally during International Labour Day in Bangalore, India, 01 May 2016. Labour Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for labourers rights. (Credit: EPA)

Indian labours and members of different trade unions, hold flags at a rally during International Labour Day in Bangalore, India, 01 May 2016. Labour Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for labourers rights. (Credit: EPA)Indian labours and members of different trade unions, hold flags at a rally during International Labour Day in Bangalore, India, 01 May 2016. Labour Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for labourers rights. (Credit: EPA)

Garment workers and activists shout slogans holding the photos of communist leaders during a rally to mark Labor Day organized by Biplobi Sramik Andolon at Paltan in Dhaka, Bangladesh, 01 May 2016. Labour Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for labourers rights. (Credit: EPA)Garment workers and activists shout slogans holding the photos of communist leaders during a rally to mark Labor Day organized by Biplobi Sramik Andolon at Paltan in Dhaka, Bangladesh, 01 May 2016. Labour Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for labourers rights. (Credit: EPA)

Garment workers shout slogans during a rally to mark Labor Day organized by Sammilito Garments Sramik Federation (SGSF) at Paltan in Dhaka, Bangladesh, 01 May 2016. Labour Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for labourers rights. (Credit: EPA)Garment workers shout slogans during a rally to mark Labor Day organized by Sammilito Garments Sramik Federation (SGSF) at Paltan in Dhaka, Bangladesh, 01 May 2016. Labour Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for labourers rights. (Credit: EPA)

Garment workers shout slogans during a rally to mark Labor Day organized by Sammilito Garments Sramik Federation (SGSF) at Paltan in Dhaka, Bangladesh, 01 May 2016. Labour Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for labourers rights. (Credit: EPA)Garment workers shout slogans during a rally to mark Labor Day organized by Sammilito Garments Sramik Federation (SGSF) at Paltan in Dhaka, Bangladesh, 01 May 2016. Labour Day or May Day is observed all over the world on the first day of the May to celebrate the economic and social achievements of workers and fight for labourers rights. (Credit: EPA)

A protester hold the placard relate to Malaysia Prime Minister Najib Razak during a May Day rally inconjunction with World Labour's Day at Kuala Lumpur, Malaysia, 01 May 2016. More than hundred peoples gathered at the rally to call for an increase the minimum wage from the existing 230 US dollars to 380 US dollars, according to local media said. (Credit: EPA)A protester hold the placard relate to Malaysia Prime Minister Najib Razak during a May Day rally inconjunction with World Labour’s Day at Kuala Lumpur, Malaysia, 01 May 2016. More than hundred peoples gathered at the rally to call for an increase the minimum wage from the existing 230 US dollars to 380 US dollars, according to local media said. (Credit: EPA)

A man takes a pictures of protesters holding placards during a May Day rally inconjunction with World Labour's Day at Kuala Lumpur, Malaysia, 01 May 2016. More than hundred peoples gathered at the rally to call for an increase the minimum wage from the existing 230 US dollars to 380 US dollars, according to local media said. (Credit: EPA)A man takes a pictures of protesters holding placards during a May Day rally inconjunction with World Labour’s Day at Kuala Lumpur, Malaysia, 01 May 2016. More than hundred peoples gathered at the rally to call for an increase the minimum wage from the existing 230 US dollars to 380 US dollars, according to local media said. (Credit: EPA)

A protester reacts during a May Day rally inconjunction with World Labour's Day at Kuala Lumpur, Malaysia, 01 May 2016. More than hundred peoples gathered at the rally to call for an increase the minimum wage from the existing 230 US dollars to 380 US dollars, according to local media said. (Credit: EPA)A protester reacts during a May Day rally inconjunction with World Labour’s Day at Kuala Lumpur, Malaysia, 01 May 2016. More than hundred peoples gathered at the rally to call for an increase the minimum wage from the existing 230 US dollars to 380 US dollars, according to local media said. (Credit: EPA)

Indonesian workers hold placards and banners as they march to the presidential palace during a rally to mark the International Labor Day in Jakarta, Indonesia, 01 May 2016. Local media report that more than 25,000 workers from Jakarta and surrounding areas are gathering for International Labor Day 2016. Labour Day, also known as International Workers' Day or May Day, is marked worldwide on 01 May (Credit: EPA)Indonesian workers hold placards and banners as they march to the presidential palace during a rally to mark the International Labor Day in Jakarta, Indonesia, 01 May 2016. Local media report that more than 25,000 workers from Jakarta and surrounding areas are gathering for International Labor Day 2016. Labour Day, also known as International Workers’ Day or May Day, is marked worldwide on 01 May (Credit: EPA)

Indonesian workers hold placards and banners as they march to the presidential palace during a rally to mark the International Labor Day in Jakarta, Indonesia, 01 May 2016. Local media report that more than 25,000 workers from Jakarta and surrounding areas are gathering for International Labor Day 2016. Labour Day, also known as International Workers' Day or May Day, is marked worldwide on 01 May (Credit: EPA)Indonesian workers hold placards and banners as they march to the presidential palace during a rally to mark the International Labor Day in Jakarta, Indonesia, 01 May 2016. Local media report that more than 25,000 workers from Jakarta and surrounding areas are gathering for International Labor Day 2016. Labour Day, also known as International Workers’ Day or May Day, is marked worldwide on 01 May (Credit: EPA)

Vorn Pao (L), President of the labor group Independent Democracy of Informal Economy Association (IDEA), makes fists during a rally in Phnom Penh, Cambodia, 01 May 2016. The workers marked the International Labor Day calling for the Cambodian government to facilitate worker unions. (Credit: EPA)Vorn Pao (L), President of the labor group Independent Democracy of Informal Economy Association (IDEA), makes fists during a rally in Phnom Penh, Cambodia, 01 May 2016. The workers marked the International Labor Day calling for the Cambodian government to facilitate worker unions. (Credit: EPA)

Cambodian workers gather during a rally in Phnom Penh, Cambodia, 01 May 2016. The workers marked the International Labor Day calling for the Cambodian government to facilitate worker unions. (Credit: EPA)Cambodian workers gather during a rally in Phnom Penh, Cambodia, 01 May 2016. The workers marked the International Labor Day calling for the Cambodian government to facilitate worker unions. (Credit: EPA)

Cambodian workers gather during a rally in Phnom Penh, Cambodia, 01 May 2016. The workers marked the International Labor Day calling for the Cambodian government to facilitate worker unions. (Credit: EPA)Cambodian workers gather during a rally in Phnom Penh, Cambodia, 01 May 2016. The workers marked the International Labor Day calling for the Cambodian government to facilitate worker unions. (Credit: EPA)