A Turkish court on Thursday remanded in custody six suspected senior members of the Gülenist Terror Group (FETÖ) who were brought to Turkey from Kosovo in late March.

Istanbul Magistrates Court completed rulings on the detainment of the six suspects after the statements of the Istanbul Public Prosecutor's Office were reported to the Bureau of Terror and Organized Crime.

The suspects, named as Cihan Özkan, Kahraman Demirez, Hasan Hüseyin Günakan, Mustafa Erdem, Osman Karakaya and Yusuf Karabina, were brought to Turkey via a private aircraft by the National Intelligence Organization (MİT), after a joint operation by the Turkish and Kosovar intelligence services.

The suspects, who were being sought by Turkey, were officially in charge of the FETÖ-run private "Gülistan" and "Mehmet Akif" school networks in Kosovo.

The suspects were also in charge of all FETÖ activities in the region, as well as trafficking FETÖ members from Turkey to the U.S. and European countries, where the terrorist group maintains a strong presence.

Özkan was in charge of collecting tithes from FETÖ members in the Balkans and transferring the terrorist group's shares to the U.S. state of Pennsylvania, where FETÖ leader Fetullah Gülen has been residing since 1999.

Günakan was the key figure in hiring teachers to the schools.

Karakaya assumed an active role in the Ergenekon sham trial launched by FETÖ-linked prosecutors and police officers targeting the officer corps and the chain of command of the Turkish Armed Forces (TSK). During the trial, Karakaya prepared reports in favor of FETÖ at the Istanbul Forensic Medicine Institution. FETÖ members used the Ergenekon and Sledgehammer (Balyoz) trials to infiltrate into the TSK, and a majority of officers and non-commissioned officers who took part in the July 15, 2016, coup attempt, which left 250 civilians killed and 2,200 others injured, were appointed to crucial command posts after these trials.