The FBI and the Department of Homeland Security downplayed or ignored "a massive amount of intelligence information" ahead of the Jan. 6, 2021, attack on the U.S Capitol, according to the chairman of a Senate panel that on Tuesday released a new report on the intelligence failures ahead of the insurrection.

The report details how the agencies failed to recognize and warn of the potential for violence as some of then-President Donald Trump's supporters openly planned the siege in messages and forums online.

Among the multitude of intelligence that was overlooked was a December 2020 tip to the FBI that members of the far-right extremist group Proud Boys planned to be in Washington, D.C., for the certification of Joe Biden's victory and their "plan is to literally kill people," the report said. The Senate Homeland Security and Governmental Affairs Committee said the agencies were also aware of many social media posts that foreshadowed violence, some calling on Trump's supporters to "come armed" and storm the Capitol, kill lawmakers or "burn the place to the ground."