Three people have been arrested in relation to an aggravated robbery at a service station south of Auckland.
Four offenders entered Waiuku Service Station at 8am armed with screwdrivers and metal poles and threatened a staff member, police said.
They left in a stolen vehicle but were spotted by police in Pukekohe, and then followed by the Eagle Helicopter.
One person got out of the car and fled on foot, before the car continued into the Papakura/Takanini area.
Police used road spikes to bring the vehicle to a stop after it crashed into a car at the Takanini on-ramp on Great South Rd. There were no injuries in the crash, police said.