Complex sentence: It ends in the Akagera river at the intersection of the 3 countries.A part from the River Muvumba that cut across the District, is a result of the reunion of 2 rivers: the Ngoma and the Karungeli.
Split into simpler sentences: It ends in the Akagera river at the intersection of the 3 countries. The River Muvumba that cut across the District, is a result of the reunion of 2 rivers: the Ngoma and the Karungeli.