Fighting at U.N. compound in South Sudan kills 18 - MSF
Among those killed were two staff members of Médecins Sans Frontières who were attacked in their homes
Fighting at U.N. compound in South Sudan kills five - U.N. mission
Another 30 people were wounded after violence erupted between two ethnic groups
Clooney says refugee crisis is huge, U.S. Muslim ban won't happen
"It's just a terrible, terrible time," said the Hollywood star
South Sudan president re-appoints rival under peace deal
President Salva Kiir re-appoints rival Riek Machar as vice president to try to end months of civil war in the world's newest nation