Mazlum Dağ and Abdurrahman Er were accused of the murder of Turkish intelligence service (MİT) member Osman Köse who was working in Turkey's Hewler Consulate in the Kurdistan Region and were sentenced to death on July 17, 2019.  The hunger strike launched by Dağ and Er on 18 May to protest the ongoing violations, specifically the imposition of uniform dress has been going on for 41 days.

Dağ and Er launched a hunger strike on September 28, 2022 to protest torture and ill-treatment in the prison, and ended the strike on its 14th day after their demands were met. Both prisoners began a death fast on February 13, 2022 to protest rights violations. The death fast ended on its 9th day after the prison administration promised to end the violations.

Dağ and Er started an indefinite non-alternating hunger strike on May 18, after the violations continued.