Capitol Police say they are taking the information “seriously.”
The U.S. House of Representatives canceled a session scheduled for Thursday after receiving information about a possible security threat at the Capitol on March 4.
Capitol Police officials said they “received intelligence indicating a possible plot by an established militia group to break into the Capitol on March 4.”
According to the FBI bulletin, the data may indicate the involvement of the Three Percenters, a group prosecutors consider extremist.
The information received is being taken “seriously,” Capitol Police said in a statement posted on Twitter.
“Our department is working with local, state, and federal partners to stop any threats to the Capitol. We take this information very seriously. Because of the sensitive nature of this information, we cannot provide additional details at this time,” the statement said.
The Capitol building remains surrounded by a temporary barbed-wire fence on top and is still guarded by about 5,000 members of the National Guard.
The Senate had planned to debate Biden’s proposed $1.9 trillion COVID-19 relief bill Thursday. However, Senator Dick Durbin reported that the House was adjourned until 12:00 p.m. Thursday.
According to some far-right conspiracy theories, former President Donald Trump, who was defeated in the Nov. 3 election, was scheduled to be sworn in for a second term on Thursday.
On Jan. 6, a mob of Trump supporters, which authorities said included right-wing extremists, stormed the Capitol, interrupting the process of officially confirming President Joe Biden’s election victory.
The rioting left five people dead, including one police officer.
The Capitol Police said in a statement that they had already made “significant security upgrades” to the building where the House and Senate sit.
It is unclear whether these improvements were made in response to the new threat or whether they incorporate measures taken after January’s riots.