Armed police descended on St Jude this evening after reports of a concern for welfare.
Following the incident, a man was detained by officers at the scene.
Several police cars, vans and a dog unit attended an address of Ann Street on Tuesday (September 3) at around 6pm.
The route was temporarily closed while officers attempted to reach the man.
A spokesman for Avon and Somerset Police said: "Armed officers were deployed as a cautionary measure while they attended a concerns for welfare.
"The man has been caught and detained."
A witness at the scene told Bristol Live : "It looks more serious than a welfare check. Police dogs, armed police, flat being boarded up."
Someone else tweeted: "Whatever’s going on in St Jude’s looks serious and sensitive. A man passing by said that bystanders had been shouted at to move away."
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