A mob of armed civilians pretending to be peaceful protesters delivering a petition to the United Nations in South Sudan forced their way into a UN base sheltering some 5,000 civilians and opened fire in the latest example of violence in a country that has seen months of fighting. A UN source, speaking on condition of anonymity, said at least 48 people had been killed and 60 wounded in the attack on the base in Bor in northern Jonglei state, where there are Indian and South Korean UN peacekeepers. Dozens of civilians were said to...