The United Nations chief is urging regional and international leaders to prevent South Sudan from falling “over the abyss” into another civil war, and to speak with one voice to support a return to peace.

Tensions are rising in the oil-rich east African nation of South Sudan after Riek Machar who serves as a vice president was arrested in the capital

STORY: In South Sudan's capital Juba, refreshments seller Victoria Kojang is worried that her country could be about to slide back into violence.:: August 5, 2018A peace deal following a five-year civil war in the world's youngest nation is being threatened by a growing rift between President Salva Kiir and his longtime rival,

South Sudan’s main opposition party says a peace agreement that ended a five-year civil war has collapsed, following the arrest of its leader Riek Machar a day earlier

South Sudan's First Vice President Riek Machar is under arrest and will be investigated on charges of trying to stir up rebellion, the government said on Friday, the first confirmation of a detention that world powers fear could reignite civil war.

South Sudan's First Vice-President Riek Machar, a long-time rival of the country's President Salva Kiir, has been placed under house arrest, his party says.