16 July 2016, 15:00 GMT
MOSCOW (Sputnik) — With Taban Deng Gai appointed as Machar's successor, the dismissal is a hard blow to the April deal reached between two South Sudanese warring factions, Radio Tamazuj said.
Civil war broke out in South Sudan in late 2013 between the country's government and opposition forces after President Salva Kiir accused opposition leaders Riek Machar and Pagan Amum of planning a coup.
In April, Kiir swore in Machar as vice president in a transitional government that was negotiated by the United States, United Kingdom and Norway in an attempt to end the fighting.
