The Forensic Crash Unit is investigating a fatal traffic crash in Mount Sheridan this morning, December 24.

Around 4.10am, a silver Mazda 3 was travelling on Foster Road when it left the road and crashed into a pole near Hardy Road.

The passenger, a 23-year-old man, died at the scene.

The driver and three other occupants were treated at the scene for non-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.