The U.N. secretary-general is opening an independent investigation into allegations that U.N. peacekeepers did not respond to prevent multiple cases of abuse and sexual violence against civilians and foreigners in South Sudan’s capital. South Sudanese troops reportedly went on a nearly four-hour rampage through the compound in one of the worst targeted attacks on aid workers in the country’s three-year civil war. Several witnesses said soldiers shot and killed a local journalist while forcing the foreigners to watch, raped several foreign women, singled out Americans, beat and robbed people and carried out mock executions. Seven people were killed in Saudi Arabia when a missile fired from Yemen struck a commercial district in the city of Najran, the kingdom’s official news media confirmed on Wednesday. The official Saudi Press Agency, citing a Defense Ministry spokesman, said a Yemeni projectile had killed four Saudis and three foreigners in the city of Najran. Protests in Mali’s capital, Bamako, against the arrest of a popular activist radio host have turned violent, leaving at least three people dead and several injured. Greece’s coast guard rescued 59 migrants from an inflatable dinghy off the island of Kos Wednesday while a second vessel reported in trouble was picked up by Turkish authorities.