The Duke of Edinburgh has had a "successful procedure" for a heart condition at a London hospital.
Prince Philip is expected to remain at St Bartholomew's Hospital, where the 99-year-old was moved from King Edward VII's Hospital on Monday, for the coming days.
In a statement, Buckingham Palace said: "The Duke of Edinburgh yesterday underwent a successful procedure for a pre-existing heart condition at St Bartholomew's Hospital.
"His Royal Highness will remain in hospital for treatment, rest and recuperation for a number of days."
Prince Philip had been spending the latest lockdown with the Queen at Windsor Castle, before he was admitted to hospital last month as a "precautionary measure" after "feeling unwell".
At the start of the year, he gave his approval to a motto adopted by HMS Magpie, one of the Royal Navy's smallest ships.
In 2020, Prince Philip handed over his role as Colonel-in-Chief of The Rifles to the Duchess of Cornwall during a rare public appearance.
Cover image: MOD.