Violence in northwest Syria has displaced more than 30,000 people this month alone, the United Nations said Monday, warning that a looming assault could create the century''s "worst humanitarian catastrophe".

UN warns of ''worst'' humanitarian crisis this century as thousands flee Syria''s Idlib

Violence in northwest Syria has displaced more than 30,000 people this month alone, the United Nations said Monday, warning that a looming assault could create the century''s "worst humanitarian catastrophe".