West Ham United have promised to launch an investigation into alleged anti-semitic chanting by their fans at White Hart Lane yesterday.
Hammers supporters are also accused of singing songs about the Tottenham Hotspur fans that were stabbed in Rome last week.
The chants that heard coming from the away end included "can we stab you every week?", "viva Lazio" and "Adolf Hitler's coming to get you".
A West Ham spokesman said: "We will review this on Monday and decide if we can take action."
Manager Sam Allardyce added: "They shouldn't be doing things like that, should they? I never heard it, so I don't know. But if I didn't hear it, I can't condemn it.
"I'll wait and look at it myself, and then I'll make a comment after I've listened to what they've said. I don't want to be a political animal. I'm in here to talk about football, not what fans are saying or singing."
