The boy was riding his bike along Melbourne Street when two teenagers, one boy and one girl, approached him. The victim was them punched in the face by the male causing him to fall to the floor. The couple then ran off.
The victim was treated in hospital for a broken jaw.
The incident took place on 3rd July at about 6.45pm.
DC David Gill of Accrington CID said, “This was a nasty, seemingly unprovoked assault which left the victim with a serious injury and I am keen to trace the people responsible.
“If anyone was in the area around the time and either saw what happened or has any other information that they think might assist with the investigation, then I would urge them to get in touch.”