Veteran broadcaster David Frost has died at the age of 74 after a suspected heart attack while on board a cruise ship.

A family statement said he had been giving a speech aboard the Queen Elizabeth on Saturday night.

He is best remembered here in the States 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."