- The US Justice Department says at least 100 more people will be charged for the January Capitol Hill siege.
- Over 400 people have been charged in connection with the deadly attack.
- The department said the investigation and prosecution will likely be one of the largest in American history.
The US Justice Department on Thursday said it expects to charge at least 100 more people for taking part in the deadly 6 January attack on the US Capitol, bringing the total number of defendants to more than 500.
"Over 400 individuals have been charged in connection with the Capitol attack," federal prosecutors said in a court filing. "The investigation continues and the government expects that at least one hundred additional individuals will be charged."
The Justice Department made the disclosure in a set of similar court filings asking judges to postpone deadlines in pending prosecutions.
"The investigation and prosecution of the Capitol attack will likely be one of the largest in American history, both in terms of the number of defendants prosecuted and the nature and volume of the evidence," the court filings stated.
Supporters of former President Donald Trump stormed the Capitol in an attempt to stop Congress from formally certifying President Joe Biden's election victory.
The violence started shortly after Trump rallied his supporters and urged them to fight to stop the certification of Biden's win.
The siege left five people dead and more than 130 police officers injured.
The FBI has been increasingly focused on suspects with ties to right-wing extremist groups including the Oath Keepers and the Proud Boys.
More than 40 members or associates of the two groups have been arrested and charged so far.
A founding member of the Oath Keepers last week became the first person to plead guilty to taking part in the riot, and prosecutors have said other defendants are in plea discussions.
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