A Good Samaritan suffered a fractured jaw after an assault and robbery at the Eastburn Rd layby on the Queenstown side of the Crown Range last night.
A man signalled for help using a cellphone torch, claiming something was wrong with his vehicle.
As the victim turned away, the man punched him several times, grabbed the victim's backpack and drove off.
The victim was able to drive to a family member's house, where police were called.
He was then taken to hospital and is awaiting surgery on his fractured jaw.