Over 570 alleged rioters have been arrested since the storming of the U.S. Capitol in January—but the FBI has reportedly found little evidence that the riot was an organized plot to overturn Donald Trump’s election defeat. Citing four unnamed current and former law enforcement officials said to be familiar with the investigation, Reuters reports that the FBI has so far found scant evidence to suggest that the riot was centrally coordinated by far-right groups, the former president himself, or his close allies. “Ninety to ninety-five percent of these are one-off cases,” one former law enforcement official said of the hundreds of riot-related arrests. “You have five percent, maybe, of these militia groups that were more closely organized. But there was no grand scheme with Roger Stone and Alex Jones and all of these people to storm the Capitol and take hostages.” The Justice Department and U.S. Attorney’s office in Washington, which are leading prosecutions related to Jan. 6, refused to comment on the Reuters report.