U.S. Rep. Conor Lamb, R-17th, told CNN on Tuesday that Congress was briefed late Monday on specific, credible threats to the U.S. Capitol and lawmakers.

U.S. Rep. Conor Lamb, D-17th, told CNN on Tuesday that Congress was briefed late Monday on specific, credible threats to the U.S. Capitol and lawmakers.

Lamb, a Marine Corps veteran, said the threats included thousands of extremists surrounding the Capitol ahead of Inauguration Day, Jan. 20.

“They were talking about 4,000 armed 'patriots' to surround the Capitol and prevent any Democrat from going in,” Lamb told CNN. “They have published rules of engagement, meaning when you shoot and when you don't. So this is an organized group that has a plan. They are committed to doing what they're doing because I think in their minds, you know, they are patriots and they're talking about 1776 and so this is now a contest of wills.”

This follows an internal FBI bulletin issued Monday warning of “armed protests” at all 50 state capitols between Saturday and Inauguration Day, and at the U.S. Capitol from Jan. 17 to Jan. 20, according to The Associated Press.

Gov. Tom Wolf on Thursday said Pennsylvania would be sending 1,500 National Guardsmen to Washington, D.C., ahead of President-elect Joe Biden's inauguration as part of increased security following last week's riots.

This is a breaking news report — pick up Wednesday's Butler Eagle to read more.