Traffic was building on the A47 after a lorry crashed with a car towing a caravan.

Police were called at around 11.25am to the A47 Dereham Bypass, Norwich bound, near the Swanton Morley turn-off.

The carriageway was blocked and traffic was at a standstill after the caravan tipped onto its side. 

The road was blocked while emergency services attended the sceneThe road was blocked while emergency services attended the scene (Image: Supplied)

Two fire crews, one from Carrow and another from Earlham, were called to assist the ambulance service and made the scene safe.

A recovery crew were sent to clear the road.

Some drivers have been delayed for up to an hour and a halfSome drivers have been delayed for up to an hour and a half (Image: Supplied)

Officials from highway maintenance managed the traffic flow.

Some drivers were delayed for up to an hour and a half.