Six aid workers killed in an ambush in South Sudan, U.N. says

GENEVA (Reuters) - Six aid workers were killed in an ambush in South Sudan on Saturday while travelling from the capital Juba to the town of Pibor, the United Nations said on Sunday, without specifying if they worked for the U.N. or giving other details.

It was the highest number of aid workers killed in a single incident since the country's civil war began in December 2013, a U.N. statement said. At least 79 aid workers have been killed since then. This year, at least 12 have died and at least eight humanitarian convoys have been attacked.