Police are investigating a single-vehicle crash in North Maclean overnight.
Early information indicates a woman was driving along Greenbank Road shortly before midnight when the vehicle she was driving left the roadway and collided with a tree.
Both the driver and the female passenger were transported to hospital.
The passenger has serious injuries, and the driver has non-life-threatening injuries.
The Forensic Crash Unit is investigating.
(Photo: Queensland Police Service. Supplied.)