Flooding in South Sudan has displaced more than 379,000 people, according to a United Nations update that warned about a surge in malaria.
Aid agencies have said the world's youngest country, highly vulnerable to climate change, is in the grip of its worst flooding in decades, mainly in the north.
The floods have affected about 1.4 million people, the UN Office for the Coordination of Humanitarian Affairs (OCHA) said on Friday, across 43 counties and the disputed Abyei region, which is claimed by both South Sudan and Sudan.
It added in a statement that more than 379,000 people were displaced in 22 counties and in Abyei.
"A surge in malaria has been reported in Jonglei, Unity, Upper Nile, Northern Bahr el Ghazal, Central Equatoria and Western Equatoria states – overwhelming the health system and exacerbating the situation and impact in flood-hit areas," the UN agency said.
Since gaining independence from Sudan in 2011, South Sudan has been plagued by chronic instability, violence and economic stagnation as well as climate disasters such as drought and floods.