Jan. 6 attack was 'domestic terrorism' -FBI's Wray

"I was appalled that you, our country's elected leaders, were victimized right here in these very halls," Wray testified before the Senate Judiciary Committee.

"That siege was criminal behavior, pure and simple. It's behavior that we, the FBI, view as domestic terrorism."

It was Wray's first testimony in Congress since the attack - a failed bid to block Congress from certifying Joe Biden's November election victory - was carried out by supporters of then-President Trump who, in a speech near the White House, exhorted them to march to the Capitol in protest.

Wray sought to beat back right-wing conspiracy theories suggesting that fake Trump supporters stormed the Capitol, telling lawmakers the FBI has "not seen evidence of that."

The Justice Department has charged more than 300 people on criminal counts ranging from conspiracy to attacking police and obstructing Congress. The rioting led to five deaths.

At least 18 people associated with the far-right Proud Boys have been charged and nine people tied to the anti-government militia known as the Oath Keepers are facing charges they conspired as far back as November to storm the Capitol to prevent Biden from becoming president.