Former South Sudanese deputy president Riek Machar has told Al Jazeera that he wants to be the country's next leader, as the government has lost control of Unity state's capital city, Bentiu. Machar's statement on Sunday comes amid fighting which has raged in the one of the world's youngest countries for more than a week, after President Salva Kiir accused Machar of attempting a coup. Machar has denied the allegation and accused Kiir of carrying out a vicious purge of his rivals. Al Jazeera's Haru Mutasa reports from Juba, South Sudan.
