Motorists heading into Auckland were warned to expect long delays on the Southwestern Motorway after a multi-car crash this morning.

The crash on State Highway 20 at the Puhinui Rd overbridge was earlier blocking the right northbound lane but has now been pushed clear of the traffic, the NZ Transport Agency says.

However, traffic was still heavy between the southern link ant Puhinui Rd.

"Avoid this route if possible or expect long delays," the agency tweeted.


A breakdown has also now been cleared on the Northern Motorway after earlier blocking the left lane just after Oteha Valley Rd.

A crash on the Southern Motorway that had blocked the right lane just after Market Rd has also now been cleared.

Citybound traffic on the Northwestern Motorway was also delayed after a crash earlier blocked the motorway's right lane just after the St Lukes on ramp.

NZTA said traffic was heavy between Hobsonville and Royal Rds as a result.

Elsewhere, four people have been taken to hospital after an early morning crash east of Auckland, near Beachlands.

The two car crash took place on the Whitford-Maraetai Rd, just after Okaoro Dr at about 5.15am, a police spokeswoman said.

The crash initially blocked the road as the four people were taken to Middlemore Hospital for a range of minor to moderate injuries and the damaged cars were towed from the scene.

By 6.30am, Auckland Council had been called with a request to clean up oil from the road, but traffic was able to pass through on one lane.