Major Collison Investigation Unit detectives are investigating after a woman was seriously injured in Katandra West last night.
Investigators have been told a B-double truck and a Mazda collided near the intersection on Sidebottoms Road and Katandra Main Road just before 7.30pm.
The driver of the Mazda, a 75-year-old woman from Yabba North suffered serious injuries and was taken to hospital.
The 74-year-old female passenger from Penrith, NSW was flown to hospital with life-threatening injuries.
The driver of the truck, a 48-year-old Nyora man is assisting police with their enquiries.
The exact circumstances of the incident are yet to be determined.
The investigation is ongoing.
Anyone with information, dashcam vision or anyone who witnessed the collision, is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential report online at www.crimestoppersvic.com.auExternal Link