In a bizarre incident, social networking giant Facebook has said that it “mistakenly deleted” CEO Mark Zuckerberg’s old posts, some of them dating back to 2007 and 2008.

A spokesperson from the company reportedly said many of Zuckerberg’s old posts about Facebook can still be found on the company’s blog and in its newsroom.

“A few years ago some of Mark’s posts were mistakenly deleted due to technical errors. The work required to restore them would have been extensive and not guaranteed to be successful so we didn’t do it,” CNET quoted a Facebook spokesperson as saying on Friday.

The spokesperson added that they didn’t know how many total posts were deleted.