A world judo champion claims she wrestled an Olympic spectator to the ground after he threw a bottle onto the track at the men's 100m final on Sunday night.
A bottle is thrown onto the track at the start of the Men's 100m Final
Edith Bosch, Holland's world judo champion, claimed on Twitter that she had "beaten" the person who had thrown the bottle at the start of the race, which was won by Usain Bolt.
She said: "A drunken spectator threw a bottle onto the track! I HAVE BEATEN HIM... unbelievable."
A man has been arrested and remains in custody, police said, but no one was injured during the event.
Bosch, 32-year-old, was standing close by when a green plastic drink bottle was thrown from the stands behind the start line.
She later told Dutch television station NOS TV: "I had seen the man walking around earlier and said to people around me that he was a peculiar bloke.
"Then he threw that bottle and in my emotion I hit him on the back with the flat of my hand.
"Then he was scooped up by the security. However, he did make me miss the final, and I am very sad about that.
"I just cannot understand how someone can do something like that."
A police spokesman said a man had been heard shouting abuse and was then seen throwing a bottle immediately before the race.
Usain Bolt wins the Men's 100m Final ahead of Yohan Blake (not pictured) at the Olympic Stadium
US sprinter Justin Gatlin, who won bronze, said: "It was a little distraction and I didn't know what it was.
"But when you're in those blocks and the whole stadium's quiet you can hear a pin drop."
Bolt told reporters he had been unaware of the incident.
He added: "No, I keep hearing that. I don't know who would have done that."
Fellow Jamaican sprinter Yohan Blake said: "I was so focused I didn't see anything. I was so focused on just running to the line."
Holland's Judo champion Edith Bosch, claimed to have tackled the man that threw the bottle
The suspect is being held in custody at an east London police station on suspicion of causing a public nuisance.
Gatlin said the incident had not affected the race: "You just have to block it out and go out there and do what you got to do.
"You can't complain about that, the race went on and it was a great race."