Veteran broadcaster Sir David Frost has died at the age of 74 after a heart attack while on board a cruise ship.
A family statement said he was aboard the Queen Elizabeth on Saturday night where he was to give a speech.
Sir David's career spanned journalism, comedy writing and daytime television presenting, including The Frost Report.
Internationally, he will be remembered for his revealing interviews with former US President Richard Nixon.
A statement said: "His family are devastated and ask for privacy at this difficult time. A family funeral will be held in the near future and details of a memorial service will be announced in due course."
The BBC's Barney Jones edited his Breakfast with Frost programme on the BBC for more than 10 years.
Of his friend and colleague, he said: "David loved broadcasting, did it brilliantly for more than 50 years and was eagerly looking forward to a host of projects - including interviewing the prime minister next week - before his sudden and tragic death. We will all miss him enormously."
Prime Minister David Cameron said: "Sir David was an extraordinary man, with charm, wit, talent, intelligence and warmth in equal measure.
"He made a huge impact on television and politics."