Serious crash on Thiele Highway leaves woman trapped and with a hip fracture, road closed

Motorists have been told to avoid the area after the crash which left a woman trapped in her car with a serious hip fracture.

Nine people including four adults and five children have been involved in a serious four-car collision on the Thiele Highway north of Adelaide.

The crash at 4.15pm on Saturday left a woman trapped in her vehicle with a serious hip fracture.

Emergency crews extricated her from the car and she was airlifted to the Royal Adelaide Hospital.

The condition of the rest of the people involved in the incident, including the children, is unknown but a second Medstar helicopter and up to six ambulances were on the scene to take those injured to hospital.

The scene at a serious four-car crash at Gawler Belt, Adelaide. Picture: 7NEWS

The scene at a serious four-car crash at Gawler Belt, Adelaide. Picture: 7NEWS.

Thiele Highway was closed to all traffic between Horrocks Highway and Argent Road, and SA Police has advised motorists to avoid the area.