JUBA, Sept. 22 (Xinhua) -- The trial of South Sudan's suspended First Vice President Riek Machar and seven co-accused on charges of treason, murder, and crimes against humanity began in Juba, the country's capital, on Monday.
The opposition leader, alongside other members of his party, the Sudan People's Liberation Movement-in-Opposition, who appeared before a special court, challenged the court's legal authority and composition of the three-judge panel.
