UK police are examining anti-Semitic tweets posted after an Arsenal-Spurs clash that saw winger Theo Walcott and St John Ambulance staff pelted with missiles.
Scotland Yard confirmed that it is assessing the messages, that referred to the Holocaust, and liaising with both clubs over objects that were thrown.
A spokesman said: “We’re aware of anti-Semitic messages posted on Twitter following Arsenal v Tottenham on Saturday January 4 – an assessment is underway.”
Walcott was apparently pelted with coins as he was stretchered off after injuring his knee during the north London derby.
The incident is being looked at as part of Operation Arrowtip, which focuses on football-related crime.
A Scotland Yard spokesman said: “The Metropolitan Police Service (MPS) is aware of incidents during the Arsenal Vs Tottenham Hotspur match on Saturday, January 4 where a number of objects were thrown from both home and away sections of the crowd.
“The MPS takes all such incidents very seriously. Officers from Operation Arrowtip are investigating and are liaising with both clubs and the Football Association (FA) over these incidents.”
The FA confirmed that it has contacted Arsenal and Spurs over the missile-throwing and said it will back the harshest punishments possible, including life bans.