A 67-year-old man has been arrested following a flat fire in Norwich.

Fire crews were called to the building in Calvert Street, off St Crispins Road, at 7.09am on Wednesday, July 6.

Police were then called to the incident at 7.23am.

A witness described seeing four fire engines, two ambulances and two police vehicles in the area.

Residents were evacuated from the building and the road reopened at 9am.

Fire crews from Earlham, Sprowston and Carrow used breathing apparatus and jets to put out the blaze.

It is currently unknown if there are any injuries.

The 67-year-old was arrested on suspicion of criminal damage and arson endangering life.

He is being questioned at Wymondham police station in connection with the blaze.