Crowd trouble marred West Ham’s EFL Cup fourth-round home win over Chelsea, with police making seven arrests.
Plastic bottles, seats and coins were thrown during the Hammers’ 2-1 victory at London Stadium as hundreds of supporters clashed and riot police entered the concourse.
It is the latest outbreak of disorder at West Ham’s new ground this season.
West Ham boss Slaven Bilic called the behaviour “unacceptable”, adding: “We are totally against it as a club.”
The club says it will ban any fans involved for life.