Trump-Biden transition live updates: Pence announces Biden as next president, Trump

Army Secretary Ryan McCarthy, at a press conference alongside Washington D.C. Mayor Muriel Bowser Thursday morning, said that 6,200 Guardsmen will be deployed to the DC area by the weekend and, as of noon, 850 personnel are on Capitol grounds.

He also announced the National Guard will set up seven-foot fencing surrounding the Capitol complex from Constitution, Independence and First Ave to the front of the Capitol pond.

Around 4,000 new Guardsmen will arrive from Virginia, Maryland, Delaware, New York, New Jersey and Pennsylvania.

Some of these troops were already going to be arriving in D.C. to help out with the inauguration, as they have in the past.  The official said that their arrival has been accelerated and that they will be on month-long deployments to help out with the current situation and continue beyond the inauguration.

-ABC News’ Luis Martinez and Quinn Owen