Queen Elizabeth's doctors "are concerned for Her Majesty’s health," Buckingham Palace announced Thursday, adding that they recommended she stay under medical supervision.

"The Queen remains comfortable" at Balmoral Castle, the palace added. The queen, 96, celebrated her platinum jubilee earlier this year.

The announcement comes after Queen Elizabeth II decided to postpone a meeting with senior government officials on Wednesday after experiencing a full day of activities the day before.

On Tuesday, the queen spent the day at her summer residence in Scotland appointing the new prime minister of the United Kingdom, Liz Truss. The 96-year-old queen oversaw an entire day’s worth of activities, involving the symbolic transfer of power to Truss.... Read More: FOX News