The Nigeria Security Tracker (NST), a project of the Council on Foreign Relations' Africa program, documents and maps violence in Nigeria that is motivated by political, economic, or social grievances. Different groups in Nigeria resort to violence. The militant Islamist movement Boko Haram is active in northern Nigeria. Violence among ethnic groups, farmers, and herdsmen sometimes acquires religious overtones. A new generation of Niger Delta militants threatens war against the state. Government soldiers kill civilians indiscriminately. Police are notorious for extrajudicial murder.