Two women have died and two people left injured after a car accident north of Byron Bay on Sunday. NSW Police were called to the Pacific Highway at Cudgera Creek following reports a Toyota Camry left the road and crashed into a cement bridge, landing in a culvert. Two women, aged 64 and 46, died at the scene. A 47-year-old man and a 14-year-old boy were treated at the scene and airlifted to the Gold Coast University Hospital with non life threatening injuries. Police from the Ballina Crash Investigation Unit have started an investigation and a report is being prepared for the NSW Coroner. Any witnesses are urged to contact&nbsp;Crime Stoppers.