Keller was charged with knowingly entering or remaining in any restricted building or land without legal authority, violent entry, and disorderly conduct on the grounds of the Chapter, and preventing law enforcement from engaging in official duties in the event of civil disorder, according to documents filed with the U.S. District Court in Washington, DC.
It is unclear whether Keller has a lawyer and is in custody.
CNN could not contact Keller for comment.
He is best known for anchoring the winning 4x200m freestyle relay at the 2004 Athens Olympics, where he held the Ian Thorpe gold medal in Australia.
Court documents also show that investigations have shown that Keller has been identified by the media as SwimSwam, which covers competitive swimming.
FBI Special Agent Matthew R. Barofsky wrote in court documents that he confirmed Keller’s identity by comparing the photos in which he was with his Colorado driver’s license.
The photos in the Capitol also show that Keller is wearing an American Olympic team jacket and “seems to be one of the tallest people,” Barofsky wrote in his statement of fact. Keller is 6 feet 6 inches tall.
In a statement, USA Swimming told CNN: “We respect the rights of individuals and groups to protest peacefully, but in no case do we accept the actions taken by the Capitol last week.”
The United States Olympic and Paralympic Committee has said it has condemned the riots.
“We support the right to protest peacefully and to express values and views in a respectful and legal manner – this makes our democracy strong. Unfortunately, this is not the case,” the organization said. in a statement.
Correction: An earlier title in this story incorrectly stated Keller’s status. He was charged and issued a warrant for his arrest. CNN has not confirmed whether he was arrested.
CNN’s Kevin Dotson contributed to this report.