A man was taken to hospital with head and neck injuries following a crash in Hellesdon on Thursday morning.
Police were called to Boundary Road near Asda at 6.10am after reports of a crash between a white van and a Citroen C1.
The East of England Ambulance Service sent two ambulance crews, a rapid response vehicle and an ambulance officer to the scene.
They treated three patients with two of them declared as walking wounded. The third patient, a man in his 20s, was taken to the Norfolk and Norwich University Hospital with head and neck injuries which are believed to be minor.
Police closed the road for a period of time with it reopening at 7.40am.
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