UPDATE: A critically injured man has been airlifted by the RACQ CareFlight Rescue helicopter following a two car crash on the Bruce Highway this afternoon.
The Sunshine Coast based helicopter was tasked to the scene near Tiaro shortly before 2.30pm today.
The man aged in his 60s was the driver and sole occupant of one vehicle who suffered multiple injuries. He was airlifted to CareFlight's Sunshine Coast base and transferred by road to Nambour General Hospital. He was in a critical condition.
Two occupants traveling in the second car were treated at the scene for limb injuries and transported by road to Hervey Bay Hospital. Both were in a stable condition.
EARLIER UPDATE: A MAN aged in his early 50s has been flown to Nambour Hospital after a head-on crash on the Bruce Hwy south of Tiaro.
A spokesman for police media said he was in a serious condition.
Wide Bay Forensic Crash Unit's Steve Webb said a woman driving a Toyota station wagon had crossed into the wrong lane and collided with the man's car about 2pm.
The woman was still trapped in her car at 4pm as rescue officers worked to free her. Another person was also believed to be travelling in the vehicle with the woman.
The extent of injuries for both drivers is not known at this stage.
Traffic is banked up for several kilometres around Tiaro as emergency services work to clear the crash.
EARLIER: A two-vehicle car crash has closed the Bruce Highway, 5km south of Tiaro.
A police spokesman said people are believed to have been injured in the crash.
The Forensic Crash Unit and Tiaro police are at the scene.
No further information is available.