DEVELOPING: Bomb squad investigation at State Dept. office in Rosslyn

Update at 4:40 p.m. — The suspicious package has been cleared and first responders are starting to leave the scene, according to scanner traffic.

Earlier: A U.S. State Department office building in Rosslyn has been evacuated as Arlington’s bomb squad conducts an investigation.

The building at 1801 N. Lynn Street, which include State Department diplomatic security offices, was evacuated shortly after 3:30 p.m. Workers were directed to a plaza across the street from the building.

Arlington County police and firefighters are now investigating what’s initially reported to be a suspicious package inside the building’s parking garage. Police blocked off 19th Street N. as a result of the emergency response, which includes the fire department’s bomb squad unit.