Two people have been seriously injured in a crash which closed State Highway 1, north of Oamaru.
The crash occurred just north of Pukeuri about 11.30am when a campervan travelling south collided with a front-end loader, also travelling south, causing the campervan to roll.
A male and female suffered serious injuries and have been airlifted to Dunedin Hospital. The driver of the front-end loader was uninjured.
It is expected SH1 will be closed for several hours while serious crash investigators are at the scene. Traffic is being diverted to Ferry Rd to the north and State Highway 83 to the south.
Inquiries into the crash are continuing and witnesses are being sought by Oamaru police.