Armed police and dog units were seen in Norwich city centre after a man was spotted with a weapon.
Police were called to Old Post Office Court at 3.22pm on Tuesday following reports of a man carrying a knife.
READ MORE: Two men arrested after fight involving weapon in Sprowston
A spokeswoman for Norfolk Constabulary said officers attended the scene and enquiries are ongoing.
People in the city reported seeing police officers dressed in full body armour and carrying guns in the London Street area.
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