Two people have been taken to hospital after a four-vehicle crash on State Highway 17 at Dairy Flat, north of Auckland, this afternoon.
Traffic is being diverted north and south of Wilks Rd to Postman Rd and Dairy Stream Rd while emergency services are at the scene.
Officers from the police serious crash unit are investigating the crash, which happened about 4.45pm.
None of the injured motorists is thought to have life-threatening injuries, police said.
Motorists are being asked to take alternative routes.