Officers detain man after becoming aggressive and making threats to staff at Sheffield Council building
Dozens of people were evacuated from Howden House in Sheffield city centre after a 30-year-old man became aggressive and started making threats towards staff.
Police were called to the building on Union Street at around 3.55pm on Tuesday.
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Hide AdArmed officers also attended the incident after receiving reports of a weapon but they were not needed, a force spokesman said.
Police took the man to hospital due to concerns for his welfare and to receive treatment for a cut on his head.
No one else was injured and no weapon was found.
Howden House reopened around an hour after police were called.