Humphrey Lyttelton admitted to hospital

The spring series of I'm Sorry I Haven't A Clue has been cancelled while Humphrey Lyttelton awaits an operation.

The veteran host's official website informed fans that the 86-year-old needed surgery because of an aortic aneurysm.

A note on the site said it would give updates on his condition. It said: "He is in good spirits and is enjoying the visits of family and friends."

Lyttelton, also a Jazz musician, has presented the comedy panel show on BBC Radio 4 since 1972.