Forensic Crash Unit officers are investigating a serious single vehicle traffic crash in Chinchilla overnight.
Preliminary inquires indicate at 8.40pm a Toyota Landcruiser was headed north on Wambo Street when the driver lost control the vehicle. The 4WD left the road and travelled through a fence and stopped against a house.
A teenage female passenger was airlifted to the Princess Alexandra Hospital in a critical condition.
A second teenage female was transported to the Toowoomba Hospital with non-life-threatening injuries.
The driver, a 18-year-old local man, was not physically injured in the incident.
Investigations are continuing.
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