Emergency services are at the scene of a serious road traffic collision on the A170 at Scawton.
The collision involving a car and a motorcycle occurred at around 10am on Thursday 30 July 2015, around one mile from the top of Sutton Bank.
The motorcyclist, a man, suffered serious injuries in the collision.
Sutton Bank is closed while officers investigate the cause of the collision and is expected to remain closed for some time. Motorists are being asked to avoid the area and find an alternative route.
Any witnesses to the collision are urged to contact North Yorkshire Police on 101 – select option 1 – and pass information to the Force Control Room.
Please quote reference number NYP-30072015-0119 when passing information about this incident.