A Hato Hone St John spokesman said two ambulances, two first response units, one rapid response unit, two managers, one Prime vehicle, and three helicopters have been sent to the scene.
“Our crews assessed and treated nine patients in total,” the spokesman said.
“At this stage, one patient is going to be airlifted to Christchurch Hospital in a serious condition, two patients are being airlifted to Dunedin Hospital in a serious condition, and six patients have been assessed and treated at the scene in a minor condition.”
The crash site is close to where two buses crashed on July 18, landing 15 in hospital.