Ayten Beçet, a Kurdish activist who has been held in a prison in Kocaeli’s Gebze prison, committed suicide on Saturday in protest of solitary confinement imposed on Kurdish prisoners across Turkey, including Abdullah Öcalan, the jailed leader of the Kurdistan Workers’ Party (PKK).

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.