Montgomery County police have confirmed the Discovery Communications headquarters on Georgia Avenue in downtown Silver Spring has been evacuated after the report of a man possibly with explosives inside the building.
A man entered the lobby and may have fired a weapon and declared, "Nobody is going anywhere," Montgomery County police said.
In a phone interview on ABC 7 News and TBD TV, Discovery Communication employee Lisa Lucas said the building is in lockdown, with an unknown number of employees sheltering in offices. Police have established a cordon around the building.