UPDATE, Oct. 4, 9:28 a.m. — The Montgomery County Department of Police tweeted that the barricade situation had been resolved. The man involved was in custody, and the order to shelter in place had been lifted.

Negotiators say they worked with the man for over four hours. Shots were fired from the balcony, residents were inside the building at the time. Police say they know the name of the suspect but such information has not been given to DC News Now at this time.

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SILVER SPRING, Md. (DC News Now) — The Montgomery County Department of Police said it was dealing with a barricade situation in the 14000 block of Castle Blvd. Tuesday morning.

At 2:25 a.m., officers responded to reports of shots fired on Castle Ridge Circle. Shortly after that, police informed the public of a barricade situation and asked that people seek shelter in the surrounding area

Later, Montgomery County Fire and EMS joined the scene to set up a mobile command center.