Turkish banking regulators on Tuesday seized 63 percent of Gülenist Bank Asya's stake, citing insufficient transparency to allow for proper regulation.The Banking Regulation and Supervision Agency (BDDK) said in a statement on its website it had taken over management of the bank and appointed a new board of directors."Because the institution has not presented a partnership structure that is transparent and open enough to allow for effective regulation ... partnership rights have been given to the Savings Deposit Insurance Fund (TMSF)," the BDDK said in a statement on its website.The Gülen Movement is led by the U.S.-based imam Fethullah Gülen. Gülen's followers are accused of infiltrating state institutions to gain control of state mechanisms and illegal wiretapping, forgery of official documents and spying.