Members of the public were standing outside the building awaiting news.
One witness tweeted: “A block-wide evacuation has just taken place in Hackney on Dalston Lane.
“The whole block was awoken by police banging at 2:15 this morning.”
They added police were responding to an “incident”.
An online service for motorists needing traffic information, also confirmed the area had been closed off.
A tweet by Jambuseter read: “(A104) Dalston Lane (Both Directions) at the junction of Pembury Road. Road closed in both directions due to an incident.
“Use other route. No reported delays.”
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Source Daily Express :: UK Feed