Prince Philip has undergone heart surgery, it was announced this morning.
Buckingham Palace said in a statement: "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."
The Palace said the duke, 99, would remain in hospital for treatment, rest and recuperation for a number of days.
Philip, the nation's longest-serving consort, has spent 16 nights in hospital - his longest ever stay.
He was moved by ambulance to St Bartholomew's Hospital in the City of London on Monday for testing for a pre-existing heart condition and treatment for an infection.
Philip was was initially admitted to the private King Edward VII's Hospital on February 16 as a precautionary measure after feeling unwell, before being moved to St Bartholomew's on Monday.
Four days later, he was visited by his eldest son the Prince of Wales, who made a 200-mile round trip and stayed for around 30 minutes.
The duke has spent most of lockdown residing at Windsor Castle with the Queen for their safety, alongside a reduced household of staff dubbed HMS Bubble.
