(Reuters) -The World Economic Forum (WEF) founder Klaus Schwab has filed a criminal complaint against the whistleblowers who had anonymously alleged misconduct by him, the Financial Times reported on Thursday, citing an interview with Schwab. The World Economic Forum had launched an investigation in April into Schwab following a whistleblower letter alleging misconduct by him, only a day after the 87-year-old Schwab said he was resigning as chairman without stating a reason. WEF did not immediately respond to a Reuters request for comment. Schwab could not be immediately reached. (Reporting by Gursimran Kaur in Bengaluru; Editing by Muralikumar Anantharaman)