UPDATE FRIDAY 6.30AM: FORENSIC crash investigators are yet to determine the cause of a fatal traffic crash at Walloon late Thursday afternoon.
A mother and her two daughters are recovering in hospital while the driver of a second car involved, a 56-year-old woman, was pronounced dead at the scene.
Haigslea-Amberley Rd is open to traffic.
Police say the the mother and her children were taken to hospital with non-life-threatening injuries.
Investigations are continuing.
UPDATE 5.30PM: A WOMAN has been killed and a mother and two children seriously injured in a horrific head-on collision at Walloon this afternoon.
Police are trying to ascertain what caused the crash, which was reported on Haigslea-Amberley Rd, just north of Walloon, about 3.45pm.
Inspector Keith McDonald said initial investigations suggested a vehicle driven by a woman aged in her 60s collided with a vehicle containing a woman and two young girls.
The woman aged in her 60s was pronounced dead at the scene.
One of the young girls in the other vehicle has sustained serious chest injuries and has been taken to Lady Cilento Hospital in a serious condition. The other girl has also been taken to Lady Cilento Hospital with chest injuries.
Police say the woman from the second vehicle has been taken to the Princess Alexandra Hospital.
EARLIER: SEVERAL people, including two young girls, are being treated for serious injuries following a crash at Walloon this afternoon.
Initial reports suggest two vehicles collided on Haigslea-Amberley Rd about 3.45pm.
Queensland Ambulance Service says the extent of injuries is being assessed, however there are serious concerns for at least one of the injured.
Two girls have sustained serious chest injuries and have both been taken to the Lady Cilento Hospital in a serious condition.
A third patient, a female, has unconfirmed injuries and is also being assessed.
There are serious concerns for a fourth patient.
Motorists should avoid the area if possible.