A man reacts as he runs at a site hit by what activists said was a barrel bomb dropped by forces loyal to Syria’s President Bashar al-Assad, followed by shelling at a bus station in Jisr al-Hajj roundabout in Aleppo

A man reacts as he runs at a site hit by what activists said was a barrel bomb dropped by forces loyal to Syria’s President Bashar al-Assad, followed by shelling at a bus station in Jisr al-Hajj roundabout in Aleppo

A man reacts as he runs at a site hit by what activists said was a barrel bomb dropped by forces loyal to Syria’s President Bashar al-Assad, followed by shelling at a bus station in Jisr al-Hajj roundabout in Aleppo May 12, 2015. REUTERS/Hosam Katan