U.S. federal agents were looking for documents relating to nuclear weapons when they raided former U.S. President Donald Trump's home in Florida this week, the Washington Post reported on Thursday.

It was not clear if such documents were recovered at the former president's Mar-a-Lago resort in Palm Beach, the Post said. Reuters could not immediately confirm the report.

The U.S. Justice Department asked a judge on Thursday to make public the warrant that authorized the FBI search of Mar-a-Lago, after Trump, a Republican, portrayed it as political retribution.