The Capitol Police department has received intelligence that a "militia group" may have hatched a plot to "breach the Capitol," the law enforcement agency said in a statement Wednesday.
"We have obtained intelligence that shows a possible plot to breach the Capitol by an identified militia group on Thursday, March 4," police said.
"We are taking the intelligence seriously," the agency added. No other information about the possible threat was provided.
Separately, MSNBC reported on Wednesday that the Department of Homeland Security and the FBI had collected information suggesting that groups identified as "militia violent extremists" had "discussed plans" to attack the Capitol on Thursday, and that state and local law enforcement had been warned of these developments.
Also on Wednesday, Acting Capitol Police chief Yogananda Pittman told lawmakers at a hearing that threats received by members of Congress have increased over 93 percent in the first two months of 2021 compared to the same period last year.
Wednesday's statement by the Capitol Police follows a report by Fox 5 on Tuesday citing agency sources that authorities had received an intelligence bulletin warning of a plot by a militia group known as the Three Percenters to attack the Capitol on 4 March. The sources indicated that days off and vacation days had been canceled in response to the suspected threat.