Young boys fill with water drums loaded on donkey-carts before selling it on March 15, 2017 in Baidoa, in the southwestern Bay region of Somalia, where the spread of cholera has claimed tens of lives of internally displaced people fleeing the parched countryside. The United Nations is warning of an unprecedented global crisis with famine already gripping parts of South Sudan and looming over Nigeria, Yemen and Somalia, threatening the lives of 20 million people. For Somalis, the memory of the 2011 famine which left a quarter of a million people dead is still fresh. / AFP PHOTO / TONY KARUMBA