Police are investigating after a woman sustained critical injuries in a quad bike crash near Ayr last night.
Preliminary information suggests three quad bikes carrying five people were travelling together along Old Home Hill Road through Mcdesme around 8.30pm when one of the vehicles flipped over, causing the driver and passenger to fall off.
The female passenger, a 22-year-old Ayr woman, sustained serious head injures and was transported to Ayr Hospital before being airlifted to Townsville where she remains in a critical condition.
The 23-year-old male driver from Home Hill was not seriously injured in the crash.
Police attended the scene and the 22-year-old driver of one of the accompanying quad bikes was charged with drink driving, not wearing a helmet, driving unregistered and driving unlicensed.
The third driver, a 21-year-old Ayr man, was also charged with drink driving.
Both men are due to appear in Ayr Magistrates Court on August 17.
The 23-year-old driver of the quad bike involved in the crash is assisting police with inquiries.
The Forensic Crash Unit is investigating.
