A man who calls himself a WikiLeaks operative is claiming “inside leaks,” not Russian hackers, are responsible for the release of emails that embarrassed Hillary Clinton’s campaign and the Democratic National Committee during the presidential race.

Craig Murray, a former British ambassador to Uzbekistan who was fired amid misconduct allegations, said he was involved in the email leaking operation. Murray claimed he personally received some of the emails from “disgusted” Democratic whistleblowers during a secret hand-off in Washington.