Three people were injured in a serious road rage incident near Kerikeri involving a crash followed by an alleged assault on one of the drivers.
The incident occurred about 1.20pm on Friday on Waipapa Rd as the vehicles, a Regent Training Centre van and a BMW car, were travelling west.
It is thought the vehicles collided after one tried to pass the other.
Senior Sergeant Peter Robinson, of Mid North police, said the van came to rest on its side while the car ended up on its roof.
Both drivers suffered moderate injuries while one of the eight students in the van sustained a minor injury to one finger.