Earlier, a police spokesperson said emergency services were at the scene, however there were no reports of injuries.
"Motorists travelling northbound are asked to avoid the area, and expect delays, while the scene is cleared."
Meanwhile, a multi-vehicle crash has blocked part of State Highway 1 at Khyber Pass. The vehicles are blocking the northbound off-ramp, with motorists warned to expect delays.
At 5.30pm, a crash blocked a left northbound lane on State Highway 1 after the Ellerslie Panmure Highway off-ramp. The crash has been cleared.
A series of breakdowns have made the commute home a slow one for Aucklanders.
A breakdown at East Tamaki next to the Southern Motorway blocked the left-turn lane on the East Tamaki Rd northbound off-ramp.
A breakdown also blocked a middle southbound lane on SH1 just after the Market Rd off-ramp.
Further south, police are at the scene of a serious crash involving a pedestrian and a vehicle on Dundas Rd (SH3) in Sanson in Manawatu.
The crash was reported about 3.45pm and the pedestrian is reported to have serious injuries.
A helicopter is en route to transport them to hospital.
Diversions are in place and motorists are asked to avoid the area.
