A 13-year-old boy suffered a broken jaw in an unprovoked attack as he walked down the street.

Police said the youngster, who was with friends at the time near a busy road in Hyndburn, was assaulted by a man who jumped out of a black sports car.

Detective Constable Paul Langley said the man punched the boy in the face before jumping back in the car and fleeing.

He said: "The boy was walking with friends when he was approached by a man driving a black convertible sports car. "The man got out of his car and punched the boy in the head before driving off.

"This was a serious attack and I would urge anyone who saw what happened or has any information to contact police."

The incident happened as the 13-year-old was walking along Dill Hall Lane in Church near to the junction with Dunkenhalgh Way at 8pm on September 2.

The attacker was described as Asian, aged in his 30s, around 5ft 11ins tall, with a muscular build and short black hair.

Anyone with information can contact Accrington CID on 01254 353741 or 0845 1 25 35 45.