At least 12 people, two of them children, have died from an outbreak of acute watery diarrhoea in the southern Sudanese town of Yei, the United Nations Children's Fund (UNICEF) has said. The outbreak, UNICEF said in a statement, was first reported on 4 February when three deaths occurred and 48 patients were admitted to local health facilities. The disease has left hundreds of people needing medical attention - about half of them children.