North London rivals Arsenal and Tottenham Hotspur have come together with the aim of capturing those involved in offensive chanting, during last weekend's North London derby.
There has been much press coverage of the chants; some aimed at Spurs striker Emmanuel Adebayor were in relation to the gun attack on the Togo national team bus on the way to last years' African Cup of Nations.
Arsenal defender Bacary Sagna was rumoured to have been spat on by the home fans as he waited to be stretchered off the pitch following a collision with the advertising boards, that resulted in a fractured fibula. Along with the usual bile that is aimed at the both managers from the rival fans.
The clubs have now released a joint statement condemning the actions and encouraging others to 'shop a moron' if they know someone who was involved. If the information is confirmed with video footage the clubs will take action that may involve the person being banned for life from both clubs' the stadium.
This is not the first time this season, fans chants have been in the spotlight. Fans of Leeds and Manchester United were also caught on camera singing songs about the Istanbul and Munich tragedies respectively, in the Carling Cup last month.