A UN human rights investigation has accused the government of South Sudan and other armed groups of deliberately starving civilians.
Investigators found access to humanitarian aid and other basic services was intentionally blocked, leaving more than half the population in acute need of food.
They said millions of dollars of state money had been plundered by government officials, and that they were collecting evidence on individuals for eventual use in court.
Their report was published two days before a deadline to form a unity government. Previous efforts to broker peace have collapsed.