WikiLeaks announced on Wednesday that it had "obtained the contents of CIA Chief John Brennan's email account" and released a small collection of documents it said came from the hack.
This comes two days after federal officials told NBC News that they were looking into reports that Brennan's personal AOL email account was hacked.
On Sunday, the New York Post published an article about a high school student who claimed to have hacked Brennan's email.
Related: Feds Looking Into Reports CIA Director's Email Was Hacked
The next day, two Twitter accounts reportedly associated with the hackers became inactive after one of them posted a spreadsheet filled with the supposed email addresses and Social Security numbers of current and former intelligence officials.