A prominent follower of the baseless conspiracy theory QAnon has been charged over the US Capitol riots.
Jacob Anthony Chansley, known as Jake Angeli, is in custody on charges including violent entry and disorderly conduct.
Mr Chansley, who calls himself the QAnon Shaman, is allegedly the man pictured with a painted face, fur hat and horns inside Congress on Wednesday.
Donald Trump faces another impeachment charge for his role in the unrest.
Democrats accuse the president of encouraging the riots, in which five people died.
The FBI has been appealing to the public to help bring the assailants to justice.
Mr Chansley has not commented publicly on the charges.
A statement from the federal attorney for Washington DC said: "It is alleged that Chansley was identified as the man seen in media coverage who entered the Capitol building dressed in horns, a bearskin headdress, red, white and blue face paint, shirtless, and tan pants.
"This individual carried a spear, approximately 6 feet in length, with an American flag tied just below the blade."
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