Police in Cambridge, Massachusetts, say a standoff with a barricaded subject on Friday morning is now over.
They said the incident ended peacefully around 6:30 p.m. One person is in custody and there are no additional occupants in the buliding.
Cambridge police said around 5:45 a.m. that they had responded to Sciarappa Street between Charles and Spring streets for "an active barricade situation."
Once officers arrived on scene, police said they learned that a male inside a residence had access to a firearm. They had originally believed there was one additional occupant in the apartment.
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No injuries were reported.
Residents in the immediate area were asked to shelter in place for about an hour and people were urged to avoid the area as officers worked to resolve the situation.