The US has announced an additional $92m (£73m) in aid for people affected by the Boko Haram insurgency and food insecurity in northeastern Nigeria and the Lake Chad Basin region.
It follows warnings from the UN that 120,000 people were at risk of dying from starvation in northeastern Nigeria as a result of the conflict, which it called the "greatest crisis on the continent".
The latest aid brings the US contribution to $291m, money that will go to the UN and NGOs to provide food, water, shelter, health services and food.
The Boko Haram insurgency has left 6.4m people in need of emergency food assistance and displaced 2.6m people, the US said.
The UN has appealed for an additional $1bn to meet humanitarian needs in the region in 2017.
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