All detainees are citizens of Turkey.
Documents and videos proving the detainees’ participation in illegal armed groups in Syria have been found during searches in their apartments.
Meanwhile, 33 members of IS were detained in Istanbul in July. In May, police detained 51 more IS members.
Syrian citizen Riad Haji Osman, one of the IS executioners, was detained during a special operation in Turkey’s Adana Province on April 13.
Kifah Bashir Hussein, the so-called minister of health of IS, was detained in Sanliurfa on Jan. 24.
On Jan. 12, the Turkish police detained the so-called minister of agriculture of IS, Tarik Ahmet.