Racism scandals continue: insult observed in a photo (PHOTO) © EuroFootball.com

London police has started an investigation into the supporter who allegedly chanted racist insults during the FA Cup match between "Chelsea" and "Man Utd" clubs.

A photo captures a man with folded hands in the stands allegedly imitating a monkey and insulting the black players on the pitch.

So far no one has been detained, but "Chelsea" has issued a statement promising to take all necessary measures to identify the culprit.

The incident follows the recent scandal involving referee Mark Clattenburg, who allegedly directed the words "shut up, monkey" towards Jon Obi Mikel during a match between the same clubs in the Premier League.

Link to the photo published by "Daily Mail":

[imgr] http://i.dailymail.co.uk/i/pix/2012/11/01/article-2226112-15CABE30000005DC-762_634x407.jpg[/img]