US-BACKED insurgents have fired chemical weapons into Syria’s largest city Aleppo, Russia’s Defence Ministry said yesterday.

Spokesman Major General Igor Konashenkov said Russian military experts had “found evidence of chemical weapon use by terrorists against the civilian population and Syrian servicemen.”

The investigators, who arrived last week, found a “high probability” of toxic chlorine gas and white phosphorous in unexploded shells and soil samples from south-western districts of the city, including the 1070 housing estate.