US Capitol police Warn of Possible Plot to Breach Congress

Security has been tightened at the US Capitol in Washington in response to "a possible plot to breach" the building.

The move was prompted by intelligence that a militia group planned the attack for 4 March - the day conspiracy theorist group QAnon believes Donald Trump will return for a second term.

The House of Representatives cancelled Thursday's session, but the Senate will continue with its agenda.

A mob loyal to Mr Trump stormed the Congress building in January.

That attack came as lawmakers were inside moving to certify Democrat Joe Biden's election victory. Mr Trump still refuses to admit losing the election.

The riot saw five people including a police officer killed and shook the foundations of American democracy. The head of the Capitol police force later resigned.

"As of late February, an unidentified group of militia violent extremists discussed plans to take control of the US Capitol and remove Democratic lawmakers on or about 4 March and discussed aspirational plans to persuade thousands to travel to Washington DC to participate," a new intelligence bulletin issued by the FBI and Department of Homeland Security says.

Following that assessment, the US Capitol Police referred in a statement to "a possible plot to breach the Capitol by an identified militia group on Thursday, March 4".

"We have already made significant security upgrades to include establishing a physical structure and increasing manpower to ensure the protection of Congress, the public and our police officers.

"Due to the sensitive nature of this information, we cannot provide additional details at this time."

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