British Transport Police are investigating a video of West Ham supporters allegedly singing anti-Semitic songs after yesterday's Premier League game at Tottenham.
The film comes just days after Chelsea supporters were caught in Paris chanting and preventing a black man from boarding their train.
Tottenham Hotspur have historical ties with London's Jewish community.
A West Ham spokersperson 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."
(Warning strong language)
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