The news of his hospital admittance comes shortly after Queen Elizabeth II made her way in the opposite direction to Sandringham in Norfolk to spend Christmas. The Duke of Edinburgh is receiving treatment and observation for a pre-existing condition. She will be joined by members of the royal family for the annual Christmas Day service at St Mary Magdalene Church - the Prince of Wales, the Duchess of Cornwall and the Duke and Duchess of Cambridge are all expected to attend.
Queen Elizabeth arrived at Sandringham from London on a regular passenger train to begin her Christmas break.
King Edward VII Hospital where Duke of Edinburgh has been admitted in London.
The palace said Philip did not travel by ambulance and it was not an emergency admission. "Having spent the last two Christmases at Sandringham, [the couple] will spend the holiday this year, as a new family, with the duchess' mother, Doria".
Since 1952, The Duke of Edinburgh carried out thousands of appearances alongside Her Majesty. And as such, the dad of four will be staying at the hospital for a few days.
Philip escaped with minor injuries after a dramatic auto crash near Sandringham in January, but in the past decade has been admitted to hospital for abdominal surgery, bladder infections and a blocked coronary artery.
At 98-years-old, Prince Philip is retired from official royal business.
Philip suffers from arthritis in his right wrist, and broke a bone in his ankle playing polo.
Earlier this year, the Duke walked away unscathed after his Land Rover Freelander overturned after colliding with one other vehicle.