Fire crews remain at the scene of a large factory fire in East Auckland.
Tī Rākau Drive, near Pakuranga, was closed during rush hour traffic last night after a plastics factory went up in flames about 5pm.
As a result of the blaze, traffic was gridlocked in the area as emergency services worked at the scene.
Firefighters extinguished the blaze about three hours later, allowing the road to partially re-open.
However, one of the westbound lanes of Tī Rākau Drive remains closed, as fire crews continue to monitor for any hot spots.
Early this morning, a northern fire communications shift commander said crews will remain at the site until at least daylight.
There are no reports of any injuries in the incident and the cause of the fire is not yet known.