Prices soar, families use river water as Islamic State besieges Syrian city

BEIRUT (Reuters) - Food prices have soared and families are drinking untreated river water in the Syrian city of Deir al-Zor, the U.N. children's agency UNICEF said on Monday, as a siege imposed by Islamic State threatens tens of thousands of civilians.

Islamic State militants launched a fierce assault on Syrian government-held areas of Deir al-Zor earlier this month, capturing an area used to supply the city through air drops as the assault cut the state-controlled area in two.