Police had earlier said they were responding to reports of shots fired as if they could be terrorist-related.
"To date police have not located any trace of any suspects, evidence of shots fired or casualties," the Metropolitan Police said in a statement.
"If you are in building stay in a building, if you are on the street in Oxford Street leave the area," they added.
(This story has not been edited by NDTV staff and is auto-generated from a syndicated feed.)
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