A West Ham spokesperson said: “At West Ham United, we have a zero tolerance policy to any form of violent or abusive behaviour. We are an inclusive football club.
“Regardless of age, race, religion or belief, marriage or civil partnership, pregnancy or maternity, sex, sexual orientation, gender reassignment or disability, everyone is warmly welcomed at London Stadium.
“Anyone identified committing an offence will have their details passed to the police and will face a lifetime ban from London Stadium. There is no place for this kind of behaviour at our stadium.”
A statement from the Met confirmed: “We are aware of a video in which it appears racial abuse is being directed at a player at a West Ham vs Liverpool game at London Stadium on Monday, 4 February. Officers are in the process of reviewing the footage.
“No arrests have been made and enquiries continue. Anyone who witnesses inappropriate behaviour during a match is urged to bring it to the attention of a steward or police officer.”