West Ham have revealed a five-point security plan at the London Stadium after violence marred Wednesday's EFL Cup win over Chelsea.
Plans include widening the segregation line and issuing stewards with handheld video cameras.
Bottles, seats and coins were thrown as hundreds of fans clashed in the EFL Cup tie. Seven people were arrested, three of whom have been charged.
It was the latest outbreak of disorder at West Ham's new ground this season.
Hammers vice-chairwoman Karren Brady acknowledged in a letter outlining the security plan that it is the club's responsibility to put measures in place to prevent further violence.