Turkish human rights groups accuse the Turkish security forces of being responsible for the disappearance of more than 1,500 civilians of the Kurdish minority in the 1980s and 1990s, in attempts to root out the PKK. Every week on Saturdays since 1995, Saturday Mothers hold silent vigil / sit-in protests to demand that their lost ones be found and those responsible be brought to justice. Each year Yakay-Der, the Turkish Human Rights Association (İHD) and the International Committee Against Disappearances (ICAD), organise a series of events in Turkey to mark the "Week of Disappeared People".