Debris blocks lanes on the Southern Motorway in Auckland. Photo: Supplied / NZTA Waka Kotahi
Police were called to the crash between the Papakura on-ramp and Manurewa and Takanini off-ramp just before 3.30pm.
Nobody was hurt.
Two lanes were initially shut down while debris was cleared on lanes heading north.
One of them has since re-opened, leaving one closed.
The Transport Agency says traffic in the area is very heavy, and drivers should allow extra time.
