Three people have died and a fourth is fighting for life after a head-on crash in southern NSW.
Emergency services rushed to Kings Highway in Monga, an hour south-east of Queanbeyan, after two Hyundai hatchbacks collided head-on.
The driver and two passengers in one of the cars died at the scene and a third passenger was airlifted to hospital in a critical condition.
Paramedics treated the driver and passenger of the other car for serious injuries before taking them to hospital.
The highway was closed east of Braidwood in both directions near Tudor Valley Road, and at Clyde Mountain Road and was expected to remain so for several hours.
Police urged drivers to avoid the area.
A crime scene has been established.
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