UK police are investigating whether a Who Wants To Be A Millionaire?jackpot winner was helped by someone coughing.
Scotland Yard were called in after British army major Charles Ingram (38) won £1 million on the ITV quiz show.
Programme makers became suspicious after hearing somebody coughing from the audience as Maj Ingram was about to answer a question.
ITV alerted police four days after Maj Ingram's win, which has not yet been televised.
The show's makers, Celador Productions, refused to comment, reports the Sunnewspaper. But Scotland Yard confirmed its Special Inquiry Team is investigating the claims.
Maj Ingram said: "I have no idea why they are investigating me. I don't know what there is to investigate".
The dad-of-three floundered on several early questions, using lifelines as he struggled to reach the £4,000 mark.
But he managed to get through to the final question, which was "What is the name of a number that is a one followed by 100 zeros?" He correctly answered: "Googol".
The Royal Engineers officer's wife, Diana, who won £32,000 on the show and has written a book about how to win, was in the audience. Mrs Ingram's brother also won £32,000 on the programme earlier this year.