The fire service had to cut a woman free from her car in Southland this afternoon.
Police and emergency services were called to State Highway 94 between Riverside and Balfour around 12:30pm.
The driver of the vehicle failed to negotiate a sweeping right-hand bend and left the road, police say.
The vehicle then overturned several times as a result, before coming to a stop.
The woman, who had sustained serious leg injuries, was transported to Southland Hospital.
She was the sole occupant of the vehicle.