The Silivri Chief Public Prosecutor's Office issued detention orders for the then chief prosecutor, the prison prosecutor and two cellmates in the investigation into the prison death of intelligence agency MİT member Kaşif Kozinoğlu; three people were detained, while Hasan Atilla Uğur said he would return to Istanbul that evening to give a statement.
In simultaneous operations in Istanbul and Ankara, former chief prosecutor Ali İşgören, former prison prosecutor Necip Doğan and cellmate Hasan Ataman Yıldırım were arrested. The two former prosecutors had later been dismissed from the profession within the scope of FETÖ. Uğur, reported to be in Cyprus, said he would return to Istanbul in the evening to give a statement.