By Max Colchester
Buckingham Palace said Thursday that Queen Elizabeth II's doctors are concerned for her health and have decided to keep her under medical supervision.
The Queen, who is 96, has been at her Scottish residence in Balmoral. A Palace official said that her immediate family members had been informed. "The Queen remains comfortable in Balmoral," the palace said.
Write to Max Colchester at max.colchester@wsj.com