A 28-year-old Izmir lawyer, identified by his initials H.D., was detained at a hotel in the western resort of Marmaris where he was allegedly making plans to escape to the Greek island of Rhodes in the Aegean Sea.
Mugla police detained H.D. when he stepped out of the hotel, media said on Nov 24.
An arrest warrant was earlier issued against H.D. as part of an Izmir-based investigation into the Gulen movement, media said, adding that H.D. was found to have used ByLock, a controversial encrypted mobile app that Turkish government believes to be the top communication tool among followers of the movement.
A Mugla court put H.D. behind bars pending trial over Gulen links.
Thousands of people have fled Turkey due to a massive witch-hunt launched by the Justice and Development Party (AK Party) government against sympathizers of the Gülen movement in the wake of a failed coup attempt on July 15. The government accuses the movement of masterminding the coup while the latter denies involvement.
More than 126,000 people have been detained and some 56,000 including academics, judges, doctors, teachers, lawyers, students, policemen and many from different backgrounds have been put in pre-trial detention since last summer.
Many tried to escape Turkey via illegal ways as the government cancelled their passports like thousands of others.