ATLANTA (AP) — The FBI on Wednesday searched the election office of a Georgia county that has been central to right-wing conspiracy theories over President Donald Trump’s 2020 election loss, acting just one week after the Republican leader predicted prosecutions over a contest he has baselessly insisted was tainted by widespread fraud.

The search at Fulton County’s main election facility in Union City sought records related to the 2020 election, county spokesperson Jessica Corbitt-Dominguez said. It appeared to be the most public step by law enforcement to pursue Trump’s claims of a stolen election, grievances rejected time and again by courts and state and federal officials, who found no evidence of fraud that would have altered the outcome.

It also unfolds against the backdrop of FBI and Justice Department efforts to investigate perceived political enemies of Trump, including former FBI Director James Comey and New York Attorney General Letitia James.

Trump has for years focused on Fulton, Georgia’s most populous county and a Democratic stronghold, as a key example of what he claims went wrong in the 2020 election. His pressure campaign there culminated in a sweeping state indictment accusing him and 18 others of illegally trying to overturn the vote.

FBI agents secured an area around the large warehouse building that houses the county elections hub with yellow tape and could be seen loading boxes from the building into trucks. FBI spokesperson Jenna Sellitto confirmed that the boxes contained ballots. Among the 2020 election documents sought are ballots, tabulator tapes from the scanners used to tally the ballots, electronic ballot images and voter rolls.

An FBI spokesperson said agents were “executing a court authorized law enforcement action” at the county’s main election office in Union City, just south of Atlanta. The spokesperson declined to provide any further information, citing an ongoing matter.

Corbitt-Dominguez said a warrant “sought a number of records related to 2020 elections,” but declined to comment further because the search was still underway.

The Justice Department had no immediate comment.