Chris Tarrant has spent a week in hospital after suffering a mini-stroke on an 11-hour plane journey, his agent has told The Sun.
The Who Want to be Millionaire presenter, 67, was rushed from Heathrow Airport to hospital in West London after falling ill on a plane from Burma.
At first doctors thought he had suffered an asthma attack, before discovering a potentially fatal blood clot in his leg.
Tarrant's agent Paul Vaughan told the paper (£): “The doctor describes it as a mini stroke, probably brought on by the asthma and bronchitis on the plane. They found a clot which they managed to break up."
He added: “He is determined to leave hospital. But he’s not going back to work. This is a nasty wake-up call.”