Police made seven arrests on Wednesday (October 26) following disorder at the London Stadium in Statford during the EFL Cup match between West Ham and Chelsea.
The seven men were arrested for public order offences and are currently in custody at various police stations.
In addition to these arrests, 30 people were issued with directions to disperse under antisocial behaviour legislation prior to the match.
After the game had ended, a significant number of officers were deployed in the stadium to deal with individuals involved in disorder.
Commander BJ Harrington, who was leading the police operation, said: "Although the vast majority of people left the stadium peacefully and were well behaved, there were a minority of people who attended the match that were clearly intent on being involved in confrontation and violence."
He said: "Despite extensive work with both clubs and the London Stadium partners as well as a large and robust policing operation, there were unacceptable incidents inside and outside the stadium, before, during and after the game.
"We welcome the condemnation from partners and have already started a post match investigation.
"We have already made seven arrests and will work tirelessly to identify people involved and bring them to justice."
Anyone with information or witnesses to the disorder is asked to call the police non-emergency line on 101.
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