The road was been re-opened in both directions on the A140 at Marsham after a three-vehicle crash.
It happened this morning at 9.45pm when a Toyota, Suzuki and Nissan were in a crash.
Fire crews from Aylsham and Sprowston are at the scene where they released a person from a vehicle using hydraulic rescue equipment.
The ambulance and police services are at the scene and one person was treated for minor injuries.
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