June 6, 2013: Prince Philip, center, the husband of Britain's Queen Elizabeth II attends a garden party at Buckingham Palace in London. Buckingham Palace says Queen Elizabeth II's husband was later admitted to a London hospital for an exploratory operation. The palace said the operation on 91-year-old Prince Philip will come after "abdominal investigations," but did not elaborate. (AP/Pool
LONDON – Britain's Prince Philip is facing exploratory abdominal surgery after being admitted to a London hospital.
Buckingham Palace says he is in good spirits and is expected to be in the London Clinic for up to two weeks after surgery on Friday.
The 91-year-old was admitted to the clinic -- a private hospital and longtime favorite for the royals -- after attending a garden party at Buckingham Palace. Philip appeared relaxed as he mingled with guests and told jokes at the party.
Officials have not released details about his condition but indicated he had had tests earlier in the week.
He had pulled out of one event this week but later attended a service at Westminster Abbey to mark the 60th anniversary of the coronation of his wife, Queen Elizabeth II.
The queen continued with her working schedule Friday, officially opening the revamped and expanded BBC broadcasting facilities.
She seemed cheerful most of the time but at other times looked somber and tired.