A police car was rammed by a driver in a stolen truck, who then escaped by driving the wrong way along the Auckland motorway overnight.
Police were alerted to a person seen stealing the light truck from a West Auckland car yard about 12.30am, police said.
A patrol car spotted the the truck and tried to stop it shortly afterwards, however the truck rammed and disabled the car before driving away.
Other police patrols pursued the truck until it drove onto the Northwestern Motorway and travelled west from Te Atatu Road in the eastbound lanes, police said.
At this point the pursuit was abandoned due to to the risk to the public.
The truck was seen to leave the motorway at Lincoln Road, and was found abandoned in an industrial area shortly afterwards, police said.
Despite an extensive search of the area the driver has not been found and inquiries were continuing.
No one was hurt when the police car was rammed, however the car was badly damaged.