West Ham have warned that supporters alleged to have chanted anti-Semitic songs on the way to Sunday’s 2-2 draw with Tottenham at White Hart Lane could be banned for life if they are found guilty.

The anti-discrimination group Kick It Out contacted police after video footage surfaced of a group of apparent West Ham fans singing an anti-Semitic song on the London Underground. The video appeared on social media and showed a group of fans chanting: “I’ve got a foreskin, how about you? F***ing Jew.”

A West Ham spokesman said: “The club emailed every supporter who had bought a ticket to Sunday’s game to remind them that they were acting as ambassadors for West Ham. 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.

“If anyone has any information on such behaviour we would urge them to report it to the club, Kick It Out or the police so it can be investigated thoroughly.”

Simon Johnson, chief executive of the Jewish Leadership Council, said he would like to see the club follow through on that promise if any are found to have been involved.

“Any form of anti-semitism is racism and therefore I support Kick It Out in their call for this matter to be investigated with the same vigour and determination as last week’s incidents with the Chelsea fans are being investigated,” he said.

Tottenham also called for firm action against those responsible for Sunday’s chants.

“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.”