With winter setting in, shortages of food, medicine and fuel coupled with intense air strikes and artillery bombardment are testing the limits of endurance among a population the U.N. estimates at 270,000 people.
Aid for the divided Syrian city of Aleppo was stuck on the Turkish border on the fifth day of a fragile ceasefire on Friday with rival factions arguing over how the supplies are to be delivered and violence increasingly undermining the truce.