A police chase near Oamaru has ended in a crash, with the car flipping, leaving the driver critically injured.
The car rolled on Herbert-Hampden Rd about 4.30pm, just outside the 70km zone, north of Palmerston and south of Oamaru.
A police spokeswoman said one person was trapped but conscious and a helicopter was called from Dunedin to take the patient to hospital.
She initially said police were called to the incident on State Highway 1 at 4.23pm by St John Ambulance services and had not been at the scene for long.
However a police statement said the driver, who was driving at speed, failed to stop for police and a "short pursuit was initiated" on Herbert-Hampden Rd.