A car has rolled on State Highway 69 in Reefton.
A police spokeswoman said the incident happened at about 5.30pm, closing the southbound lane.
The car has been moved on to the grass beside the highway.
Police and ambulance are at the scene.
AdvertisementAdvertise with NZME.
Latest from New Zealand
Fringe station Reality Check Radio needs hundreds of thousands to get back on air
The update comes after the station released a 14-minute video pleading for donations.