The X Factor bosses have investigated an incident in which one of the show’s contestants claimed they were racially abused by another.

The Sun reported that Derry Mensah, from boyband The Risk, complained after he got into a row with Kitty Brucknell and thought she called him an ‘evil black b******’.

Kitty denied the claim and the pair were quizzed by show staff and she later apologised for the row.

An X Factor spokeswoman said: “There was an argument between two contestants which was looked into by production and the matter has been resolved.”

Kitty has divided viewers of the hit ITV1 talent show with her over the top performances and outrageous costumes and last week admitted she would not ‘win a popularity contest’.

The show has hit the headlines recently with a number of behind-the-scenes problems including reports of a row between judges Kelly Rowland and Tulisa Contostavlos.

The former Destiny’s Child singer was replaced by Alexandra Burke last weekend after dropping out with illness.

Other problems include girl band Rhythmix being forced to change their name to Little Mix after a charity of the same name complained and Ashley Baptiste walking out on The Risk saying he was ‘not truly committed’ to the band.