Inspector Cornell Klussein of police northern communications understood the car's driver was one of the injured occupants.
The police serious crash unit attended the scene and conducted a scene examination.
Mr Klussein said an investigation was underway.
The road had since re-opened.
The crash comes after a person was seriously injured when they were hit by a car in Pt Chevalier, Auckland, last night.
Emergency services were called to the scene, near Pt Chevalier Rd, just after 9pm.
A St John spokeswoman said a pedestrian, whose gender is not yet confirmed, had been struck by a vehicle and had been taken to the Auckland City Hospital emergency department.