A PREGNANT woman's unborn baby has died after their vehicle collided with a truck in the Snowy Valleys at the weekend.
The woman's two other daughters remain in hospital.
Police previously announced the elder daughter was brain dead but have since retracted the statement.
About 3pm on Saturday, a Subaru Liberty travelling along Gocup Road failed to give way to a semi-trailer while turning onto the Snowy Mountains Highway, causing the two vehicles to collide.
The 29-year-old woman driving the vehicle, alongside her 10-year-old daughter and 4-year-old daughter, were freed by emergency services.
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The mother, who was 30 weeks' pregnant, was airlifted to Canberra Hospital and the children transported to Westmead Children's Hospital, all in a critical condition.
The mother, from Nicholls, ACT, lost her baby.
The 10-year-old daughter remains in Westmead Children's Hospital.
The 4-year-old remains in hospital in a critical condition.
The 58-year-old male truck driver was not injured in the collision and was take to Tumut Hospital for mandatory testing.
Police say the truck driver is assisting with inquiries, and a crime scene was established a processed by the Crash Investigation Unit.