The Chief Public Prosecutor's Office in Istanbul on Thursday issued arrest warrants for 121 suspected members of the Fetullah Terrorist Organization (FETÖ), according to a judicial source.
Among those being sought is Fatmanur Gülen, the niece of FETÖ leader Fethullah Gülen and Belkis Nur Tetik, the sister-in-law of Adil Öksüz, who is accused of being a mastermind of the 2016 defeated coup in Turkey.
So far, 33 suspects, including Fatmanur Gülen, have been arrested during Istanbul-based simultaneous operations across 29 provinces, the source, who spoke on condition of anonymity due to restrictions on talking to the media, said.
The search for other suspects remains ongoing, the source added.
FETÖ and its U.S.-based leader Gülen orchestrated the defeated coup of July 15, 2016, which martyred 250 people and injured nearly 2,200 others.
Ankara also accuses FETÖ of being behind a long-running campaign to overthrow the state through the infiltration of Turkish institutions, particularly the military, police and judiciary.