A man has been arrested at the Olympic shooting competition on suspicion of assault.
The incident took place at the Royal Artillery Barracks in Woolwich, where the shooting event is being held.
A Scotland Yard spokesman said: "Just after midday today a 25-year-old man was arrested on suspicion of common assault.
"He is currently in custody at a south London police station."
The Barracks has enjoyed capacity crowds since the Games started yesterday, in contrast to other venues where empty seats have led to complaints from frustrated fans.