Police and emergency service crews are at the scene of a serious two-car crash on the Lincoln Highway near Whyalla.
The head-on crash occurred just after 6 am on the Lincoln Highway at Middleback Range, west of Whyalla.
The drivers of both vehicles are being treated at the scene for serious injuries,
The Lincoln Highway has been closed for westbound traffic, for those traveling in the area please be patient if driving in the area.
Police say emergency services are still at the scene with the injured parties and are having trouble getting them out of the car.
It has been reported they have leg and other injuries from the crash.
The highway has been reopened for traffic.