A motorcyclist was struck with a piece of wood during an attack on the A61.
Police are appealing for witnesses after the incident on Chesterfield Road between Clay Cross and Alfreton on Friday, October 12 at around 11.15am.
A white Ford transit van tried to force the motorcyclist off the road. A passenger in the van then struck the motorcyclist with a piece of wood.
Witnesses should call police on 101.