Firefighters were at the scene of a city centre blaze for nearly four hours overnight.
The fire broke out at a commercial building in Bishopgate just before 11am on April 2.
Members of the public reported seeing fire crews near Norwich Magistrates' Court and the St Martin at Palace Plain area.
It was later confirmed the fire broke out in Norwich Magistrates Court, forcing it to close on Monday, April 4.
Two fire engines from Earlham and one from Sprowston attended the scene.
Crews wore breathing apparatus and used thermal imaging cameras to look for hot spots.
The issue was resolved by 2.43am on Sunday, April 3.
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