Meanwhile, a car has flipped on the Southern Motorway, southbound, after hitting a lamp post. Despite initial reports someone was trapped in the vehicle, a police spokeswoman said no-one was trapped and only one person received minor injuries.
Emergency services were at the scene, near the East Tamaki offramp.
Traffic is expected to build so the New Zealand Transport Agency is warning motorists to have patience.
Expect delays S-Bnd on Sthn Mwy near Highbrook due to crash partially blocking the left lane. Expect delays N-Bnd due to #RubberNecking ^LC
— Waka Kotahi NZTA Auckland & Northland (@WakaKotahiAkNth) October 26, 2016