A section of the B1508, running from Sudbury to Bures, was closed following a one-vehicle collision.
Police were called at 3.30pm today following reports of an accident involving a single vehicle near Sudbury.
The vehicle reportedly rolled and left the road.
The B1508 which was closed between Chapel Lane and Wyatts Lane, causing substantial tailbacks.
An ambulance was called to the scene, no-one was trapped in the vehicle but a woman was taken to hospital with neck pain.
Suffolk Constabulary re-opened the road at 5pm.
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