The incident occurred shortly before 7.30pm at the junction between Weardley Lane and Otley Road when a Vauxhall Corsa was in collision with a HGV.
The driver of the corsa, a 58-year-old woman, and an 85-year-old female, who was the front seat passenger, both died at the scene.
An 84-year-old female, who was the rear seat passenger, was airlifted to Leeds General Infirmary where she died this afternoon (21st July 2011).
The occupants of the vehicle are all believed to have come from outside the area.
The driver of the HGV was not injured in the incident.
Anyone witnesses or anyone with information is asked to contact West Yorkshire Police’s Major Collision Enquiry Team via: 0845 60 60 606.