POLICE are investigating a serious traffic crash that occurred earlier this morning in the Blackstone area.
Preliminary information indicates that around 4am, police were attempting to pull over a vehicle travelling at high speed on Redbank Plains Road when it failed to stop for police.
A tyre deflation device was deployed in a nearby street, but the vehicle drove around it and sped away from the scene.
Patrolling police located the vehicle crashed into the rear of a parked truck on Redbank Plains Road a short time later.
All six occupants in the car were transported to hospital including a woman passenger who sustained critical injuries and five others, one male driver, two male passengers and two female passangers who were treated for non-life threatening injuries.
The Forensic Crash Unit is investigating.