Руква
Nkasi District (formerly Nkansi District) is one of the three districts of the Rukwa Region of Tanzania, with its headquarters in the village of Namanyere. It is bordered to the north by the Mpanda District of Katavi Region; to the east by the Sumbawanga District; to the south by the Sumbawanga Rural District and Zambia; and to the west by Lake Tanganyika across from the Democratic Republic of Congo.