The FBI raid on Donald Trump's Florida residence was partly based on suspicions of violations of the US Espionage Act related to the illegal retention of sensitive defence documents, a warrant has shown.

The warrant and related materials, now unsealed by a US judge, showed agents took away with them a significant number of documents labelled "top secret".

Mr Trump, 76, did not object to the warrant details being made public, according to a court filing.

Some of the papers were marked "top secret" and were "meant to be only available in special government facilities," said the unsealed seven-page federal court filing.

The filing contained a list of items removed from Mar-a-Lago, including information about the "President of France," and the warrant to search the palatial estate in Palm Beach.

The US Justice Department had asked a federal judge to unseal the search warrant.

Mr Trump, who is weighing another White House run in 2024, said he would not block its release but complained he was the victim of "unprecedented political weaponisation of law enforcement" by "radical left Democrats".

He and his lawyers have actually had a copy of the search warrant and the receipt listing the property seized by FBI agents for days and they could have revealed the contents previously themselves.

Law enforcement officers are seen in front of Mar-A-Lago on 9 August

The Wall Street Journal said FBI agents carted away around 20 boxes of items including binders of photos, a handwritten note and the grant of clemency made by Mr Trump to Roger Stone, an ally of the former president.

The Washington Post yesterday cited anonymous sources close to the investigation as saying classified documents relating to nuclear weapons were among the papers sought by FBI agents during the raid.

Mr Trump himself appeared to deny the claim, posting that the "nuclear weapons issue is a hoax" and even suggesting the FBI might have been "planting information" at his home.

The highly unusual move to unseal the search warrant was announced by Attorney General Merrick Garland who said he had "personally approved" the raid on Mr Trump's home.

Leading Republicans have rallied around Mr Trump and some members of his party have accused the Justice Department and FBI of partisanship in targeting the former president.

In an attack that appeared to be a direct response to the FBI search of Mar-a-Lago, an armed man tried to storm an FBI office in Cincinnati, Ohio, yesterday.

The assailant, who was shot dead by police after exchanges of gunfire, reportedly posted on Mr Trump's Truth Social platform that he hoped his actions would serve as a "call to arms."

In addition to investigations into his business practices, Mr Trump faces legal scrutiny for his efforts to overturn the results of the November 2020 election, and for the 6 January, 2021 attack on the US Capitol by his supporters.