Johannesburg, Shawwal 12, 1432, Sep 10, 2011, SPA - Fresh sectarian clashes overnight killed at least 12 people in central Nigeria. A group of farmers were attacked by herdsmen, according to a report of the German Press Agency "DPA". "A cycle of violence has emerged in which each incident almost invariably provokes deadly reprisal attacks," the UN Office of the High Commissioner for Human Rights said on Friday. --SPA 15:39 LOCAL TIME 12:39 GMT www.spa.gov.sa/923698