Following the discovery of another mass grave last Thursday, Amnesty International has called upon the Algerian authorities to fully investigate the site and to treat previously unearthed graves similarly. According to Algerian security sources, the grave contains more than a dozen bodies of victims of killings committed by an armed group during the mid-1990s. In recent months, Amnesty International has repeatedly expressed concern about the failure of the Algerian authorities to investigate mass grave sites in line with international standards, raising fears that evidence of grave human rights abuses has been lost.