Judo medallist thumps bottle thrower
Dutch judo Olympic medallist Edith Bosch claimed she punched the drunken spectator who threw a bottle onto the track moments before the 100m final.
Holland's world judo champion, who won bronze in the 70kg category, tweeted that she had "beaten" the person who had thrown the bottle.
She said: "A drunken spectator threw a bottle onto the track! I HAVE BEATEN HIM... unbelievable."
Nobody was injured during the incident and the event was not disrupted, the Metropolitan Police confirmed.
The suspect is being held in custody at an east London police station on suspicion of causing a public nuisance.