West Ham and Tottenham fans came to blows on the concourse at the London Stadium during half-time of Sunday’s Premier League match.
The scuffle ensued when both sets of fans bypassed a number of stewards and forced open a door separating them.
Fans on either side threw punches at their rival fans, while plastic cups of beer were also launched through the doorway.
The door were eventually re-closed just over a minute after the punch-up started.
Two Tottenham fans were arrested.