According to relief workers who spoke to the BBC, three people have died of famine in South Sudan as a result of the stoppage of food deliveries.
The fatalities happened in a camp for displaced people in the northern Warrap state.
The UN's World Food Programme (WFP) previously announced that it has put rationing programmes on hold in several areas of the nation owing to a shortage of financing.
The organisation said it required $426 million (£352 million) in June to keep providing food.
However, such assistance has not materialised as a result of the international community's attention being diverted by other converging problems, such as the Russian invasion of Ukraine.
One of the kids, according to Sami Al Subaihi, a Doctors Without Borders employee in the camp, was just five years old.
He claimed, "I discover the mother of one of the kids sitting beside her five-year-old son's little, just excavated grave." Her three other kids, who are all frail and emaciated, are sitting outside the door of the family's makeshift shelter.
He also mentioned that over 20,000 individuals living in camps for displaced persons were in danger of famine.
"I saw individuals falling in one camp due to physical exhaustion. They obviously haven't eaten enough in a while. In any of the shelters, I don't see anyone cooking or any food being kept."
The WFP has "delayed aid to 1.7 million people owing to being underfunded, but we continue [to serve] 4.5 million people," an official told the BBC.
They said that the suspension affected several areas of the nation and that more than 60% of the 11 million people living there now experienced "food insecurity."
A statement from the organisation on June 14 stated that it had "exhausted all possibilities before halting food assistance, including cutting rations in 2021, leaving families in need with less food to consume."
Despite the establishment of a unity government in 2020, South Sudan has been plagued by war since gaining independence in 2011, which has contributed to food shortages.
In addition, the situation has gotten worse due to four seasons of floods in a row that have devastated houses and farmlands and caused tens of thousands of people to be displaced.