(170322) -- MOGADISHU, March 22, 2017(Xinhua)-- A herd of sheep drink water at a water hole where people fetch water in a dried up riverbed near Doolow, a Somali town bordering with Ethiopia, March 20, 2017. According to the United Nations World Water Development Report released on Wednesday, the World Water Day, over 800,000 deaths every year in the world are caused by contaminated drinking water and improper hand washing. (Xinhua/Sun Ruibo)