Blue lights lit up a busy city road this evening during a large emergency services operation. 

Police, fire, rescue and ambulance crews were all called to Sweet Briar Road on the outer ring road at around 7.20pm.

Fire crews from Hethersett and Wroxham as well as a drone unit from Wymondham and the surface rescue boat from Carrow were called to the scene.

READ MORE: In the dock: The criminals jailed in Norfolk last week

A spokesman for Norfolk Fire and Rescue Service confirmed that the crews were assisting with a police incident. 

The fire and rescue crews left the scene at around 8.20pm. 

Police were called to the scene at the same time for a "concern for safety", with the issue being safely resolved.

The exact details of the incident are not yet clear, with eyewitnesses reporting around 10 emergency vehicles being on the Sweet Briar Road bridge over the River Wensum.