WATCH: Prankster dives into pool before Tom Daley wins 10m platform gold
A man snuck past officials during the men's 10m diving final at London's Diving World Series and jumped from the platform.
The surreptitious competitor didn't even manage a somersault and was met by boos immediately after he stripped down to his Speedos and splashed into the pool.
Watch the dive
Tom Daley took out the gold medal, once the competition finally recommenced. Apparently the nuisance diver had lost his keys during his prank and they had to be retrieved before the competition got underway again.
Daley won bronze at the 2012 Olympics but has failed to secure a World Series title since April 2013.
His winning dive was a forward 3.5 somersault with one twist.
He told BBC Sport,
"I knew I had this in the tank and that I could beat the Chinese.
"It [99.00] is the highest I've ever scored with a 'twister' routine in my life, so it's great for it finally to work in competition."
He beat Chinese duo Jian Yang and Bo Qiu to take out the final with the high score of 102.60
[Top image] Tom Daley. Photo: Instagram