Boys around a fire in the Awerial refugee camp
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Lack of water, shelter and food for South Sudan refugees

2 January 2014 Last updated at 10:47 GMT

Tens of thousands of people who have fled fighting in South Sudan are trying to survive in makeshift camps with no access to clean water, food or shelter.

At least 1,000 people have died and some 180,000 people forced from their homes since fighting erupted last month between supporters of President Kiir and those of his sacked deputy Riek Machar.

Alastair Leithead reports from the Awerial refugee camp 140km (87 miles) north of the capital Juba where sickness such as diarrhoea is already affecting children.