A 21-year-old Sunrise Beach man has been airlifted to hospital with serious injuries after a four-vehicle crash in Doonan.
The Forensic Crash Unit is investigating the crash that occurred on Tuesday night, 9 July.
Initial investigations indicate just before 6pm, a black Holden Rodeo was travelling south on Walter Hay Drive when it crashed into a black Audi S3 travelling in the opposite direction.
The impact caused the Audi to veer onto the south side of the road, where it collided with a white Hyundai Palisade.
The Holden continued on the incorrect side of the road before crashing into a black Ford Ranger.
The driver of the Holden, a Sunrise Beach man, 21, was airlifted to hospital with serious injuries.
The driver of the Ford, a Noosaville man, 63, was taken to Sunshine Coast University Hospital with non-life threatening injuries.
Investigations are continuing.
