South Sudanese refugees look on at Al-Nimir refugee camp in Sudan's east Dafur on June 20, 2017, during a visit by US Charge d'affaires Steven Koutsis. About 400,000 South Sudanese have arrived into Sudan since the war erupted in the world's youngest country, according to UNHCR. About 50 percent of them live across 10 camps in Sudan, while the rest are scattered in cities and towns. / AFP PHOTO / ASHRAF SHAZLY