Siraç Yüksek, a Kurdish activist who has been held in a prison in the southern Turkish province of Osmaniye, committed suicide in protest of solitary confinement imposed on Kurdish prisoners across Turkey, including Abdullah Öcalan, the jailed leader of the Kurdistan Workers’ Party (PKK).

Yüksek’s body was sent to the Adana Council of Forensic Medicine for an autopsy, and he will be buried in Mardin’s Nusaybin district.

He was arrested in May 2016 during a curfew imposed on Nusaybin at the time, according to Mesopotamia.

Peoples’ Democratic Party (HDP) deputy Leyla Güven in November went on a hunger strike when she was jailed on charges of disseminating terrorist propaganda.

At least four Kurdish inmates have committed suicide within one week in protest of the solitary confinement imposed on the jailed Kurdistan Workers’ Party (PKK) leader Abdullah Öcalan.

Acording to the Mezopotamya news agency reported, the last inmate who committed suicide is a twenty-four-year-old, Medya Çınar. She reportedly had been in pre-trial detention since May 2016.

She refused to defend herself in any language other than Kurdish during her trial and would not participate in hearings through a video conferencing system in protest of Öcalan’s “isolation,” the report said.

on Saturday, Ayten Beçet, a Kurdish activist, committed suicide in a prison in Kocaeli’s Gebze prison. Beçet’s lawyer, Züleyha Gülüm, told the media that Beçet left a note before killing herself.

Beçet was handed down nine years by a court in 2012 for membership in a terrorist organization. According to the lawyer, she had two years left before her release.

In addition to Çınar and Beçet, two other Kurdish inmates identified as Zülküf Gezen (33), Zehra Sağlam (23) committed suicide within the past week.