Children left gasping for air after suspected gas attack in Aleppo

More than 80 people were suffering severe breathing difficulties in Syria's embattled city of Aleppo after another chemical attack Tuesday on a rebel-held neighborhood, said the Syrian Civil Defense, a volunteer rescue group.The UK-based Syrian Observatory for Human Rights also reported the attack, saying that medical sources accused regime warplanes of pounding the Sukkari neighborhood with barrel bombs "laden with poison gas."Such scenes are becoming all too familiar in Aleppo, part of which has been held by rebels since July 2015. Government forces in July encircled the rebel-held part of the city in a siege that cut residents off from basic supplies of food, water, fuel and medicine, spawning a humanitarian crisis.Rebel-held Aleppo has been pounded by the forces of President Bashar al-Assad's regime, backed by Russian air power. Several cases of chlorine gas bomb attacks also have been reported there.

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