Sudanese flee militiamen they say are razing villages in Darfur
Some 73,000 civilians have been forced from their homes in the Darfur region since January
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