A growing number of African immigrants have made their homes in Omaha in the last twenty years. There are approximately 8,500 Sudanese living in Omaha, including the largest population of Sudanese refugees in the United States. Most have immigrated since 1995 because of warfare in Sudan. They represent ten ethnic groups, including the Nuer, Dinka, Equatorians, Maubans and Nubians. Most Sudanese people in Omaha speak the Nuer language. Other Africans have immigrated to Omaha as well, with one-third from Nigeria, and large populations from Kenya, Togo, Cameroon and Ghana.