Rik Mayall suffered “an acute cardiac event”, following a morning run his wife said.
Barbara Robbin – who married the late actor in 1985 - issued the following statement, in which she also thanked the public for their “heartfelt love and support”.
The couple had three children together, Rosie, Sid and Bonnie.
"We now know that our darling Rik suffered an 'acute cardiac event' at our home around midday on 9 June,” she said
"He had just returned from his usual run and many people had seen him that morning.
"I, Rosie, Sid, Bonnie and the many in our extended family who have received the thousands and thousands of messages of condolence from all over the UK and beyond these shores would like to say thank you to each and every one of you for your heartfelt love and support.
"I would also like to thank the press for their discretion at this time and for all the wonderful coverage that you have given Rik. It would have made him very happy.
"We always knew that Rik was well loved but we are all overwhelmed by so many joining us in our grief.
"I am sure that you all know Rik's response would be something along the lines of, 'Well thanks very much all of you… now f*** off!!!!'"
Rik Mayall: Career in pictures
Rik Mayall: Career in pictures
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Rik Mayall 'The Last Hurrah' CD signing, Falmouth Bookseller in Cornwall, 2013
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British actor and comedian Rik Mayall being interviewed in January 1985
3/15 Rik Mayall with his wife
Rik Mayall attends the Olivier Awards at the Dominion Theatre in London, 1989
4/15 Rik Mayall and Dave Allen
Rik Mayall and Dave Allen at the British Comedy Awards party in London, 1993
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Rik Mayall in 'Rik Mayall Presents', 1995
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Rik Mayall in 1999
7/15 Rik Mayall with his wife
Rik Mayall with his wife Barbara in 2000
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Rik Mayall in 2003
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Actor Rik Mayall arrives at the UK Film Premiere of the classic novel by Jules Verne 'Around The World In 80 Days' at Vue West End in London, 2004
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Rik Mayall at the National TV Awards in Royal Albert Hall in London, 2005
11/15 Rik Mayall and Marsha Fitzalan
Rik Mayall and Marsha Fitzalan pose as their comic 1980's TV characters Alan and Sarah B'Stard in London, 2006
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Actor Rik Mayall is asked to move on by police as he poses as his comic 1980's TV character Alan B'Stard to launch the four-month UK tour of the stage adaptation of the satirical TV series outside the Houses of Parliment in London, 2006
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Rik Mayall auditioning actors for the parts of Tony and Cherie Blair for his play 'The New Statesman - Alan B'Stard's Extremely Secret Weapon', Trafalgar Studios, Whitehall in London, 2006
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Rik Mayall standing on a Saltire painted cow outside the Scottish Parliament, 2006
15/15 Rik Mayall and Alan Yentob
Rik Mayall jokes with television executive and broadcaster Alan Yentob at the British Comedy Awards in London, 2011
A post-mortem examination proved inconclusive, West London Coroner's Court said this morning, 12 June. Further tests are required, the results of which are not expected for days or “or most probably weeks”.
“The post-mortem was done this morning. The tests have proved inconclusive therefore tests are ongoing,” said a West London Coroner's Court spokesperson.
Robbin said on Monday that she didn’t know the cause of Mayall’s death.
“We don't know yet what happened. He had a strong heart, so I don't think it was a heart attack. But we just don't know until the coroner's report.”
The Blackadder actor as found dead on 9 June, aged 56, in his London home.
In 1998, Mayall was left in a coma for several days after a serious quad bike accident. He recovered, but was left with epilepsy – for which he took daily medication.
His friend and colleague Peter Robinson said earlier this week that his death could have been caused by a "seizure", revealing that the actor had "happily chatted" to his son only half an hour before he died.