Anadolu Agency says authorities had been searching for Kutbettin Gulen on charges of "membership in and leadership of a terrorist organization" when he was detained at a friend's home in the western city of Izmir yesterday.
Officials told Anadolu no charges are being brought against his spouse or the friend.
Ankara accuses his brother, who is based in Pennsylvania, of orchestrating the violent coup attempt and is demanding his extradition to Turkey. The cleric denies all accusations.
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