The documents found at Mar-a-Lago will be assessed by the intelligence community.
The Director of National Intelligence wrote a letter to the chair of the House Intelligence Committee and the chair of the House Oversight Committee.
The Department of Justice and the Office of the Director of National Intelligence are working together to facilitate a classification review of relevant materials.
They said in a statement that they were happy with the inquiry.
Among the documents stored at Mar-a-Lago were those that could endanger human sources. It is critical that the IC move quickly to assess and mitigate the damage done, a process that should precede the DOJ's criminal investigation.
The FBI seized 11 sets of classified documents from Mar-a-Lago, some of which may have concerned nuclear weapons. The affidavit to search the estate was blacked out.