This is reported by the Turkish news agency 'Anadolu'
As a reason for detention an indication to the organization of the coup attempt in Turkey to 15 July is a called.
Recall that a key ally of Gulen was detained before in Turkey.
A group of soldiers tried to seize power in Turkey in the night of 15 July 16.
Erdogan blamed Gulen for organizing the coup. Gulen has been living in the USA since 1999. At the same time the State Department requires a proof of Gulen's guilt for his extradition to the homeland.
As reported earlier by 1492news.com, Fethullah Gülen could leave the United States, - Turkish authorities