A rebel-held area of Syria has been hit by an outbreak of typhoid after power cuts hit water supplies and forced the population to turn to the Euphrates River, the UN's health agency warned Tuesday. Tarik Jasarevic, spokesman for the World Health Organisation, told AFP that some 2,500 people had caught the disease in the country's northeast. "They don't have access to clean water, or electricity to work their pumps, so they draw water from the river," he said.