A Dartford paedophile, who is already behind bars, has been jailed again for sexually assaulting a girl.

Ashley Challis, 22, of The Brent, has been serving a 10-and-a-half year prison sentence for two counts of rape on a boy, aged nine to 10 years old, and engaging in sexual activity with him between 2008 and 2011.

He was sentenced at Maidstone Crown Court on September 3 last year.

Challis has been handed an additional 14 months in jail for three counts of sexual assault on a girl under the age of 13.

He appeared at Maidstone Crown Court by video link at Parkhurst Prison, Isle of Wight, on September 26.