A person is in a critical condition after a rubbish truck rolled on State Highway 96 in Southland this morning, blocking the road.
Emergency services were called shortly before 11.30am at the highway's intersection with Chisholm Road.
A police spokesperson said the driver appeared to be trapped and a helicopter was sent to the scene. St John Ambulance confirmed there was one person in a critical condition.
The Transport Agency said motorists travelling in the area should use an alternative route or delay their journey because the highway was blocked at Springhills.