Emergency services were called to a crash in Mundford Road, between Methwold and Cranwich, this morning.
A spokeswoman for Norfolk Police said they were called at 8.30am to reports a car had overturned after colliding with a hedge half a mile from Cranwich.
She said the fire service attended and cut the roof off a black Vauxhall Astra and that one person had complained of a back injury at the scene.
The Norfolk Fire and Rescue Service sent crews from Thetford and Brandon to the incident.
Firefighters used hydraulic rescue equipment to free a woman trapped inside the vehicle.
A spokesman from the East of England Ambulance Service Trust sent they sent an ambulance crew and an ambulance officer to the scene.
A woman was taken to the Queen Elizabeth Hospital in King’s Lynn for further treatment.