Police are warning drivers to be extra vigilant after a man who stopped to help two people seemingly hurt in a crash was assaulted and robbed.
The man was driving a van on Old Road in Leconfield, East Yorkshire on Monday (23/09) when he saw a motorcyclist lying in the road with another man helping him.
The driver stopped and opened his window to ask if he could assist at which point one of the men is alleged to have attacked the driver.
The other hoaxer stole two mobile phones from within the van by opening the passenger door.
Officers said the driver was left with a serious wound to his arm which needed treatment in hospital.
The attackers are described as speaking with Liverpool accents and one may have been injured as the driver left the scene.
Detective Inspector said: