An unmarked police car had its driver's door all but ripped off when it was hit by another vehicle near Kaitaia.
The Kerikeri-based officer who had been driving the car, and was standing beside it at the time, was lucky not to be hurt, Northland road-policing manager Inspector Wayne Ewers said.
The officer had stopped a vehicle on the Awanui Straight yesterday morning as it was heading towards Kaitaia and pulled off to the side of the road in front of it.
Another car travelling south managed to pass the first vehicle but struck the police car's door.
The driver stopped a short distance away, where he was spoken to by police. Mid North officers were in Kaitaia as part of Operation Distractions, which Mr Ewers said was otherwise going well.