A report released Friday by the U.N. mission in Ivory Coast and the U.N. Office of the High Commissioner for Human Fights alleged Dozos killed the victims with guns, machetes and knives between March 2009 and May 2012.
"Dozos involved in the perpetration of human rights violations must be held accountable," U.N. High Commissioner for Human Rights Navi Pillay said in a statement.
Doudou Diene, a Senegalese lawyer appointed as an independent envoy for Ivory Coast, said members of the non-governmental community in the country have pressed the government on how best to step the violence. Dozos continue to pose a threat to the population, he said.
Ivory Coast is working to recover from political turmoil that had the country on the brink of civil war in 2011.
The International Criminal Court unsealed an arrest warrant in October for former Ivorian Youth Minister Charles Ble Goude, charged with war crimes. The court said he allegedly had power to give orders to Ivorian youth who were recruited into the military to serve as mercenaries loyal to former President Laurent Gbagbo, himself facing trial at the ICC.