MORE details have come to light about the car crash at Wyaralong Dam that claimed the lives of two children.
Inspector Douglas McDonald said the accident, which happened about 2pm yesterday, involved a 2001 Landrover Discovery with two adults and four children inside.
He said the driver of the vehicle was a 23-year-old man and his passengers included a 33-year-old woman, a one-year-old boy, a 13-year-old boy, a five-week-old girl and a four-year-old girl.
The family had been travelling from Pimpama to their home town near Warwick.
Senior Sergeant Ken Murray from Beaudesert police station said the accident occurred in the Boonah (Ipswich) police district but Beaudesert officers were first responders and had performed CPR on two of the children.
"I'm so proud our troops were able to respond in the first instance and we had two officers performing CPR on the children for about an hour," he said.
"This was a devastating event for the family and our hearts go out to them.
"Confronting a scene like that was hard on our officers too. It is something that will never be forgotten."
Inspector McDonald said the accident appeared to have occurred after the vehicle struck a wire road barrier on a relatively straight section of road in a 100km/h zone.
"The vehicle has then veered to the opposite side of the road and collided with a barrier, rolled down a stone embankment and came to rest on its roof in a semi-submerged position in Wyaralong Dam," he said.
"The adults were able to extract themselves and remove two of the children. Passing motorists stopped to assist but tragically the four-year-old female and 14-year-old male were unable to be revived."
Inspector McDonald said the injured occupants were taken to Brisbane Children's Hospital by air and road.
He said the one-year-old was in a stable condition and the five-week-old had not sustained serious injury.
"The two adults are expected to undergo surgery for non life-threatening injuries," he said.
Inspector McDonald said he could not confirm the cause of death of the children but did say that alcohol did not appear to be a factor.
He said the two children who died had been trapped in the car longer than the others and there had been some difficulty getting the doors open.
A police car rushing to the scene also rolled.
Inspector McDonald said the officer did not sustain serious injuries but it showed how easy it could be to roll a car, especially on unsealed roads.
Police are calling for anyone who was on Beaudesert Boonah Road yesterday and may have dashcam footage of the crash that killed the two children to come forward.
A report will be prepared for the coroner.
