A gunman opened fire in a Copenhagen shopping mall, one of the largest of its kind in Scandinavia, killing an unspecified number of people and wounding several others on Sunday, police said.

The suspected gunman, who is in custody, is a 22-year-old Danish man who was detained near the Fields shopping mall on the southern outskirts of the capital, said police inspector Søren Thomassen, head of the Copenhagen police operations unit.

“We know that there are several dead” and “several injured,” Thomassen told a news conference, adding that terror can’t be ruled out. “We do not have information that others are involved. This is what we know now.”

He didn’t provide any further details on the victims or supsect, or say how many people were killed or wounded. The shopping center is on the outskirts of Copenhagen just across from a subway line that connects the city center with the international airport. A major highway also runs adjacent to Fields, which opened in 2004.... Read More: Associated Press