At least 14 people have been detained over their alleged use of ByLock mobile application, which the government believes to be a top communication tool among Gülen movement followers.

The movement is accused by the government of having organized a coup attempt on July 15, 2016.

Police in Karabük, Samsun and Istanbul provinces carried out operations to round up 13 teachers who were earlier dismissed from their positions, and a housewife on Monday.

Critics often blast the government for detaining thousands simply for using a mobile application.