I have looked up two news stories here and here. He was actually still 68, and the cause of his death is unknown.

One of the sites has some of his quotes, which I think are worth putting on here.

IN HIS OWN WORDS

"I still think of myself as I was 25 years ago. Then I look in a mirror and see an old bastard and realise it's me."

"Am I the Irish comedian with half a finger? No, I'm the Irish comedian with nine and a half fingers."

"A good storyteller never lets the facts get in the way."

"We spend our lives on the run: we get up by the clock, eat and sleep by the clock, get up again, go to work - and then we retire. And what do they give us? A clock."

"I don't go out of my way to be outrageous, I just go out of my way to look at things."

"I'm an atheist ... thank God."

"I've stopped smoking ... I think the cost was a lot of it, and not being able to breathe. I first gave up smoking when I was eight."

"If it's sent by ship then it's a cargo, if it's sent by road then it's a shipment."

"Don't mourn for me now, don't mourn for me never - I'm going to do nothing for ever and ever (what Allen said he would like to have inscribed on his tombstone)."

"Goodnight, thank you, and may your god go with you" (Allen's trademark sign-off).