Thursday 7 February 2019 21:39, UK
West Ham have handed evidence to the Metropolitan Police after an investigation into alleged racist abuse aimed at Liverpool's Mohamed Salah on Monday night.
Following the 1-1 draw, a video emerged on social media in which audible slurs directed at the Liverpool forward could be heard.
West Ham and the police announced on Wednesday they would investigate the allegations.
In a statement on Thursday, West Ham said: "After a thorough and immediate investigation following the abhorrent racist abuse aimed at Liverpool striker Mohamed Salah on Monday night, West Ham United can confirm that it has handed evidence to the Metropolitan Police.
"The club is unequivocal in its stance - such abuse will not be tolerated.
"There is no place or excuse for this kind of behaviour."
The alleged abuse directed at Salah was condemned by Hammers boss Manuel Pellegrini, who said the club "must not allow" such events to occur.
Leading anti-discrimination campaigner Piara Powar - the executive director of the Fare Network - says he is concerned by the number of recent incidents of racism and other forms of discrimination in the game.
Powar said: "The number and frequency of recent incidents in England is quite alarming.
"Football seems to have a rump of fans who have trouble accepting the diversity of our country.
"Some fans think they have licence to express publicly what they think privately - to give air to their prejudices and world view in public spaces such as football stadiums."