Source:
BBCThe United Nations has warned villagers in South Sudan to flee from advancing fighters from a rival ethnic group.
Fighters from the Lou Nuer ethnic group are pursuing members of the Murle group, reports say, as a deadly vendetta over cattle raiding continues.
Tens of thousands of Murle fled the town of Pibor after it came under attack from the Lou Nuer on Saturday. <snip>
About 1,000 people have been killed in recent months as reprisal attacks over cattle raids have escalated.
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http://www.bbc.co.uk/news/world-africa-16381579