Around 24 million people are being targeted by the UN for aid in the Sahel region of Africa.

On Wednesday, the UN launched a US$2 billion appeal to support humanitarian relief there.

Up to 600,000 children alone, could die from malnutrition in the coming year unless they receive life-saving treatment.

Toby Lanzer is the UN humanitarian coordinator for the Sahel and is currently in Senegal.

Daniel Dickinson asked him what the needs are.

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