Former US President Donald Trump has been charged with conspiracy to overturn his election defeat in 2020.
He is charged with four counts, including conspiracy to defraud the United States, interfering with a witness, and conspiracy against citizens' rights.
The indictment concludes an investigation into the circumstances leading up to the January 6, 2021 violence at the US Capitol.
Mr. Trump, 77, who is running for president again, denies any misconduct. He termed the lawsuit "ridiculous" on social media.
He is previously accused of mishandling secret materials and falsifying business documents to conceal a hush-money payment to a porn star.
The election probe has concentrated on Mr. Trump's conduct during the two-month period between his defeat and the violence in Washington, DC, in which his supporters rushed Congress as lawmakers confirmed Democratic President Joe Biden's victory.
"The attack on our nation's capital on January 6, 2021 was an unprecedented assault on the seat of American democracy," stated US Justice Department-appointed special counsel Jack Smith on Tuesday evening.
"As described in the indictment, it was fuelled by lies."
Four key conclusions from Trump's indictment
Mr Smith concluded his brief statement by committing to seek "a speedy trial," emphasizing that the former president "must be presumed innocent until proven guilty."
Mr. Trump is scheduled to appear in court in Washington, DC on Thursday.
Six unnamed co-conspirators are mentioned in the 45-page indictment: four lawyers, a Justice Department official, and a political consultant.
Mr Trump is accused of a "conspiracy to impair, obstruct, and defeat the federal government function through dishonesty, fraud, and deceit" in the court papers.
Prosecutors said, in response to Mr. Trump's allegations of voter fraud in 2020, that "these claims were false and the defendant knew that they were false."
They also claim that Mr Trump attempted and failed to persuade Vice President Mike Pence to obstruct Mr Biden's certification as president on January 6, 2021.
"As violence erupted, the Defendant and co-conspirators capitalized on the disruption by redoubling efforts to levy false claims of election fraud and persuade members of Congress to postpone certification based on those claims."
The indictment also names numerous US officials and senior Trump campaign officials who, according to the indictment, advised the outgoing president that he had lost and there was no evidence of voter fraud.

