Four people were taken to Canberra Hospital following a single-vehicle crash on the Hume Highway near Gunning on Saturday afternoon.
Emergency services were called at 3.15pm to reports a southbound car had rolled off the highway near the Collector Road off-ramp, just north of Gunning.
RFS spokesman Ben Shepherd told The Post all the occupants were out of the car and were treated by ambulance.
A NSW Ambulance spokeswoman confirmed three males and a female were treated for minor to serious injuries. They included a suspected shoulder injury, pain, abrasions and headaches.
All were taken to Canberra Hospital by road ambulance for further treatment.
The vehicle was extensively damaged in the crash. RFS provided fire protection at the scene.
One southbound lane was closed for a short time but reopened shortly after 5pm. Mr Shepherd said a tow truck arrived at 5.15pm.
Police are investigating the circumstances of the crash.