People wait for food vouchers in Sana'a.
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Eighty per cent of Yemen's population in need of aid - UN

A year after Saudi Arabia began a bombing campaign against the Houthi rebels who ousted Yemen's president, the United Nations says more than 80% of the population now need some form of humanitarian assistance.

The UN says 2.4 million people have been internally displaced, and at least 3,200 civilians have been killed - most were victims of airstrikes by the Saudis and their allies.

Orla Guerin reports.

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