Anti-Semitic chanting before West Ham match probed
Video footage has emerged of a group of men, thought to be West Ham fans, chanting anti-Semitic abuse on a train in north London.
Anti-discrimination group Kick It Out has contacted police over the footage, filmed on Sunday.
The video appeared on social media showing fans on the way to the 2-2 draw with Tottenham at White Hart Lane.
West Ham said it had a "zero-tolerance policy" and perpetrators could be banned from the club's ground for life.
It had warned fans before the match that "any form of discriminatory behaviour" would not be tolerated.
Most Spurs fans are not Jewish but the club has a historical association with London's Jewish community.
The latest controversy comes after Chelsea supporters were filmed pushing a black man from a train on the Paris Metro last week.
Police are also investigating racist chanting at St Pancras station by men thought to be Chelsea fans returning from the Champions League match in Paris.
The latest footage was uploaded to Twitter by Spurs fan @RomanGeezer, who tweeted: "On the train on the way to the game, West Ham fans break into song in Stamford Hill, a Jewish area, scum."
A British Transport Police spokesman said: "We are encouraged the public has the confidence to report incidents of inappropriate and offensive football-related behaviour to us.
"We take these incidents very seriously, and it is clear what happened on the Paris Metro and at St Pancras the following night were not isolated events."
A West Ham spokesman said: "If any individual is found to have behaved in an inappropriate way, the club's simple, zero-tolerance policy dictates that they will face the strongest possible action, including the option of a life ban from the Boleyn Ground."
Tottenham said it hoped those involved would be identified and dealt with seriously.
A spokesman for the club said: "Anti-Semitism in any form is wholly unacceptable and we support all efforts to kick it out of the game.
"We hope that those individuals responsible for this vile behaviour are identified and dealt with in the strongest way possible."