Sorghum and maize produced in South Sudan have reached record prices across the country.
In July, both sorghum and maize were traded in Juba retail markets at a record price of about five pounds per kilo, the Global Information and Early Warning System on Food and Agriculture said.
The price represents an increase between 180 and 220 per cent year-on-year.
Expensive fuel, bad roads and high transport costs were blamed for the hike.
The UN says that price increases have pushed people further towards food insecurity and strained already stretched household coping mechanisms.