A ground convoy arrives in Darayya, Syria.
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Calls for Syria air drops as ground convoy reaches Darayya

The US, UK and France have urged the UN to begin air drops of humanitarian aid to besieged areas in Syria.

Any operation would not happen "imminently", a senior UN official has warned.

A rare ground convoy made it through to Darayya on Wednesday which is one of the worst hit areas but the supplies did not include any food, as Will Ross reports.

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