TV chef Jamie Oliver reportedly pinned a burglar to the ground after he tried to break into his house.
The star, 43, chased the would-be thief down the street while neighbours called 999, the Daily Mirror reports.
Jamie's wife Jools and their five children were all at their mansion in Highgate, north London, at the time of last week's incident, the newspaper said.
A source was quoted as saying: "Jamie went absolutely mad and sprinted after the man down the street before catching up with him and pinning him down to the floor.
"He was then joined by his driver and a handful of neighbours who helped him hold down the burglar until police arrived to arrest him."
A spokeswoman for Scotland Yard said in a statement: "At 7.13pm on Tuesday, September 4th, police were called to reports of an aggressive male attempting to gain entry to residential addresses in N6.
"The male was apprehended by members of the public and was subsequently detained by police.
"He was taken to a north London police station where he remains at this time. Officers from Central North Command Unit are investigating."
ITV News contacted Jamie Oliver about the reported burglary, but were told that the chef would "not be commenting on this story".