The Forensic Crash Unit is investigating following a single-vehicle crash at Watalgan, north of Bundaberg, yesterday afternoon, September 21.
Initial investigations indicate at approximately 1pm, a motorbike was travelling north along Rosedale Road when it left the road, crashed, and caught fire.
The fire then spread and took hold in nearby vegetation.
The rider, a 50-year-old Captain Creek man, sustained serious injuries and was transported to Bundaberg Hospital in a critical condition.
Emergency crews managed to contain the fire, and no one else was physically injured.
Witnesses or anyone with relevant vision is urged to contact police.
If you have information for police, contact by providing information using the 24hrs per day at .
Report crime information anonymously via . Call or report online at .