The Forensic Crash Unit is investigating a fatal traffic crash in Toowoomba overnight, December 15.

Around 11.30pm, a silver Mazda was travelling west on Spring Street in Kearney Spring when it left the road and crashed into a pole at the intersection with Spring Street.

One of the passengers in the vehicle, a 22-year-old South Toowoomba woman, died at the scene. Three other passengers, a 17-year-old girl, 20-year-old woman and 20-year-old man, were transported to the Toowoomba Base Hospital for treatment.

The driver of the vehicle, a 16-year-old Kearneys Spring man, was airlifted to the Princess Alexandra Hospital with life-threatening injuries.

Forensic Crash Unit investigations remain ongoing.

Any witnesses, or anyone with relevant CCTV or dashcam vision is urged to contact police.

If you have information for police, contact Policelink by providing information using the online suspicious activity form 24hrs per day at www.police.qld.gov.au/reporting or call 131 444.

Report crime information anonymously via Crime Stoppers. Call 1800 333 000 or report online at www.crimestoppersqld.com.au.

Quote this reference number: QP2402154657