South Sudan President Salva Kiir in famine warning

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The President of South Sudan has told the BBC his country faces one of its worst famines unless the current conflict is ended.

Speaking to the BBC's Stephen Sackur on Hard Talk, Salva Kiir said it was essential that humanitarian agencies were allowed to work unchecked.

And he appealed to his rival, the rebel leader Riek Machar, to do all he could to end the fighting.

You can see the full interview on BBC World News at 14:30 and 20:30 GMT on Monday 19 May and on BBC Two at 10:35 BST on Tuesday 20 May.

19 May 2014