FBI investigating leak of classified docs on Israeli preparations for possible Iran strike

The FBI is investigating the leak of classified documents that included top secret U.S. intelligence describing Israeli preparations for a possible attack on Iran, Fox News Digital confirmed. 

"The FBI is investigating the alleged leak of classified documents and working closely with our partners in the Department of Defense and Intelligence Community," the bureau said in a statement. "As this is an ongoing investigation, we have no further comment." 

The Department of Defense has already confirmed it is investigating the unauthorized release.

White House National Security Council spokesman John Kirby told reporters on Monday that he did not have information on whether the unauthorized release was a result of a hack or an employee leak. 

US INVESTIGATING RELEASE OF CLASSIFIED DOCS ON ISRAEL'S PLANNED STRIKE ON IRAN

"We're not exactly sure how these documents found their way into the public domain. I know the Department of Defense is investigating this," Kirby said. "I'm just not able to answer your question whether it was a leak or a hack. At this point, we'll let the investigation pursue its logical course." 

"We're deeply concerned, and the president remains deeply concerned about any leakage of classified information into the public domain," Kirby said. "That is not supposed to happen. And it's unacceptable when it does."