A TEENAGER was knocked off his motorbike in a hit and run in Whitchurch over the weekend.

The 19-year-old motorcyclist was riding a green Kawasaki motorbike down Winchester Road, near the entrance of the Clock Barn, at around 6.18pm on Saturday.

The rider was then knocked unconscious in a collision with a BMW, the driver of which failed to stop.

The motorcyclist came off his bike during the collision and sustained injuries to his left leg.

The BMW is believed to be grey and police say it would have sustained significant damage to the offside rear passenger door, window and trim in the collision.

Police are appealing for witnesses or any dash cam footage of the incident.

Anyone with any information can get in contact with the police by calling 101 with reference number 44190206128.