Three people were inside each car and one woman was airlifted to hospital with life-threatening injuries.

It’s believed young teens and children were among the injured.

Major Crash investigators were sent to the scene, about 55 kilometres south of Adelaide.

Victor Harbor Road was closed to traffic in both directions between Goolwa Road and Hindmarsh Tiers Road.

Drivers were being advised to take an alternate route via Pages Flat Road.

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