Capitol Hill in Washington, D.C., was placed on lockdown due to a security concern. Smoke was seen rising from behind the capitol building. The fire has been reportedly extinguished and there have been no injuries. “#DCsBravest responded to an outside fire in the 100 block of H St SE that has been extinguished. There were no injuries. This accounts for smoke that many have seen,” wrote the DC and Fire EMS official account on Twitter.  An emergency broadcast was heard along with an alarm and staff inside the Capitol were asked to remain inside the building and away from doors and windows. Some sources allege that the fire came from a nearby homeless encampment. The U.S. Army confirmed that as many as 25,000 National Guard members will be stationed in Washington D.C. for Inauguration Day on Jan. 20. The Defense Department authorized up to 25,000 service members to be deployed, …