The Food and Agriculture Organization of the United Nations (FAO) and the United Nations World Food Programme (WFP) warn that acute food insecurity is likely to deteriorate further in 18 hunger hotspots during the outlook period from June to November 2023. For the outlook period, FAO and WFP are issuing an early warning for urgent humanitarian action in 18 hunger hotspots, including 2 regional clusters and comprising a total of 22 countries. In the hunger hotspots, parts of the population will likely face a significant deterioration of already high levels of acute food insecurity, putting lives and livelihoods at risk. Targeted humanitarian action is urgently needed to save lives and livelihoods in all 18 hunger hotspots. In eight of these – Afghanistan, Haiti, Nigeria, the Sahel region (Burkina Faso and Mali), Somalia, South Sudan, the Sudan and Yemen – humanitarian action is critical to prevent starvation and death.