files from Mar-a-Lago 

The FBI took 11 sets of classified files in a search of ex-US President Donald Trump's estate in Florida this week, according to a search warrant.

The cache includes documents marked "TS/SCI", a designation for top secret material that could cause "exceptionally grave" damage to US national security.

Mr Trump denies any wrongdoing and said the items were declassified.

It was the first time an ex-president's home was searched in a criminal probe.

The list of items was made public on Friday afternoon after a judge unsealed a seven-page document that included the warrant authorising the search of Mr Trump's Palm Beach residence, Mar-a-Lago.

It said more than 20 boxes of items were taken on Monday, including a binder of photos, a handwritten note, unspecified information about the "President of France" and a clemency letter written on behalf of long-time Trump ally Roger Stone.

As well as four sets of top secret documents, the list includes three sets of "secret documents" and three sets of "confidential" documents.

The warrant indicates that FBI agents were looking into potential violations of the Espionage Act, which makes it illegal to keep or transmit potentially dangerous national security information.

The removal of classified documents or materials is prohibited by law. Mr Trump increased the penalties for the crime while in office and it is now punishable by up to five years in prison.

The warrant notes that the locations searched at Mar-a-Lago include an area called the "45 office" and storage rooms, but not private guest suites being used by Mr Trump and his staff.

The justice department had asked a court to make it public on Thursday, a move considered rare amid an ongoing investigation.

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It was approved by a judge on 5 August, three days before it was carried out on Monday, 8 August.

In a statement on his Truth Social platform, Mr Trump said the items recovered were "all declassified" and securely stored.

He said he would have been willing to hand the items over before the search warrant was carried out.

"They didn't need to 'seize' anything," he said. "They could have had it anytime they wanted without playing politics and breaking into Mar-a-Lago."

Mr Trump's supporters have been making the legally debatable case that he had the authority as president to declassify all of the recovered documents before he left office, and did so.

Law enforcement agencies around the country are reportedly monitoring online threats against government officials that have emerged in the wake of the FBI search.

US Attorney General Merrick Garland, who personally approved the warrant, defended federal agents on Thursday as "dedicated, patriotic public servants".

"I will not stand by silently when their integrity is unfairly attacked," he told reporters.