A second person has died, following a fatal traffic crash in Kearneys Spring earlier this month.

Investigations indicate around 11.30pm on December 15, a silver Mazda was travelling west on Spring Street when it left the road and crashed into a pole at the intersection with Muller 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 boy, was airlifted to the Princess Alexandra Hospital with life-threatening injuries but has since passed away.

Forensic Crash Unit investigations remain ongoing.

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

Earlier:

Fatal traffic crash, Toowoomba

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.

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

Quote this reference number: QP2402154657