There was heavy traffic in Thorpe St Andrew following a two-vehicle crash.
Police were called to Yarmouth Road at the junction with Primrose Crescent at 12.30pm.
The crash involved a car and a bus.
An ambulance arrived at the scene at 12.45pm but the nature of any injuries is not yet known.
There was queuing traffic in both directions in Yarmouth Road, between Catherine Gardens and Pound Lane.
For up-to-date information about the county's roads, visit our LIVE Norfolk traffic map.
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