Earlier: Police have surrounded an apartment building on S. Glebe Road, near Shirlington, after officers heard a gunshot from one of the apartments.
Shortly before 4:00 p.m., officers responded to the Twenty400 building (2400 24th Road S.) to check on the welfare of a man who had not shown up for work for several days. Upon making entry into the apartment, officers heard a gunshot, according to Arlington County Police Department spokesman Dustin Sternbeck. They immediately backed out of the apartment and called for additional resources.