One person has been taken to hospital after a six-car pileup in Central Otago.
Police say the crash happened in the Roaring Meg section of the Kawarau Gorge about 7.15am.
Firefighters cut one driver from a car.
Police said a heavy motor vehicle had come to the end of a slow-vehicle bay and a van had stopped suddenly to let it out.
The van and truck continued on but six following vehicles collided in nose-to-tails.