Britain's Prince Philip, the Duke of Edinburgh, has had a "successful procedure" for a pre-existing heart condition at a London hospital where he was moved earlier this week, Buckingham Palace said on Thursday.
The 99-year-old husband of Queen Elizabeth II has now spent 16 nights in hospital first at the private King Edward VII's Hospital and now at St. Bartholomew's Hospital where he was transferred for further tests and observation for a pre-existing heart condition.
"The Duke of Edinburgh yesterday [Wednesday] underwent a successful procedure for a pre-existing heart condition at St. Bartholomew's Hospital," Buckingham Palace said in a statement.
"His Royal Highness will remain in hospital for treatment, rest and recuperation for a number of days," the statement added.