'X Factor' finalist filmed attacking girl

X Factor finalist Emily Nakanda has been filmed attacking a teenage girl.

The 15-year-old Londoner, who is one of two remaining hopefuls in the 'Girls 14-24' category, is seen putting a blonde girl in a headlock in the mobile phone video.

Nakanda proceeds to swing the girl by her hair, before hitting her several times and pushing her to the ground.

It is not the first time that the contestant's temperament has been questioned. Earlier this week The Sun uncovered a video clip in which Nakanda threatened to gouge out a boy's eyes with a knife.

X Factor executives have launched an investigation into the incidents, with a representative telling The Sun: "We in no way condone her behaviour. Our investigations are continuing but at this time we are taking no further action."