A man who stopped to offer a ride to a hitchhiker was savagely beaten and left on the side of the road as his attacker took off with his vehicle.
Police are investigating the incident, which occurred on State Highway Two, near Wairoa, on Sunday night.
The man, in his 60s, was on his way from Gisborne to Napier when he stopped to pick up a hitchhiker about 10.30pm.
Senior sergeant Nick Dobson said a member of the public stumbled across the man at Whakaki, north of Wairoa at around 10.45pm.
"The man had injuries consistent with an assault and was taken to Hawke's Bay Hospital for treatment."