The numbers behind a "borderline famine"
The leading food security consortium, the IPC Global Partnership, says there is "a really dire, perhaps borderline famine situation" in parts of Unity State in South Sudan.
The situation is likely to deteriorate, it states. However, a lack of information makes it impossible to say whether the situation meets the IPC's technical definition of a famine - an important, and emotive, signal. Given large-scale conflict and displacement, and underlying fragility, the possibility has been under review for months.