The FBI is asking the public to help identify people involved in the attack. D.C. Metro police is offering a reward of up to $1,000 to anyone who provides information leading to an arrest.
Army Secretary Ryan McCarthy said the fence will be in place for "at least" the next 30 days. He added that 6,200 members of the National Guard will be in the region by this weekend.
The extremists are calmly milling about the Capitol grounds, despite the D.C. curfew in effect. The relatively peaceful dispersal is in stark contrast to the response to last summer's BLM protests.