Fears that South Sudan - the world's youngest nation - could plunge into a new civil war have intensified after the party of suspended Vice-President Riek Machar called for regime change.
The call came after Machar - currently under house arrest - was charged with murder, treason and crimes against humanity.
His party, the Sudan People's Liberation Movement In Opposition (SPLM-IO), has denounced he charges as a political witch-hunt to dismantle a 2018 peace accord that ended a five-year civil war.
Meanwhile, extra troops from neighbouring Ugandan have been deployed to South Sudan's capital, Juba, as tensions escalate.
The latest crisis comes as a UN report has accused South Sudanese officials of stealing billions of dollars in oil revenues, leaving millions of people without essential services and fuelling the deadly conflict.
What's the background?
South Sudan gained independence from Sudan in 2011, following decades of conflict. Yet, just two years later, a civil war erupted when President Salva Kiir dismissed Machar, leading to a tragic conflict resulting in hundreds of thousands of deaths.
Why is there tension now?
The current tensions escalated with clashes between Machar's allied White Army militia and the government forces earlier this year. Following disturbances, Machar was put under house arrest amid allegations of instigating a rebellion. The situation has worsened with serious charges being laid against him.
How has corruption affected the situation?
A recent UN report revealed rampant corruption among South Sudan's political elite, with billions misappropriated from oil revenues, exacerbating the humanitarian crisis.
How bad could things get?
Warnings from UN officials suggest South Sudan is on the brink of renewed war, with disturbing indicators of potential exacerbation of conflict as armed groups appear to prepare for military engagement.
