Incumbent Vice President Mike Pence has received death threats for endorsing President-elect Joe Biden's victory.
Thousands of security personnel have been deployed across the United States, including Washington, ahead of Biden's inauguration.
No major incidents were reported during the weekend in other major cities, including Washington DC. National Guards are stationed in more than a dozen states, including Michigan, Virginia, Wisconsin, Pennsylvania and Washington.
It should be noted that the FBI has issued a warning of armed attacks.
