The Russian defense ministry said that the Mi-8 aircraft, carrying five people, was on its way to back to Russia's main air base in the western province of Latakia after delivering humanitarian aid to the city of Aleppo.
Syrian government cut off all supply routes to rebel-held parts last week.
Washington says ‘rebranding’ not to change its view of the jihadist group.
About 300,000 civilians trapped as violence intensifies in rebel-held city.
U.S. and Russia to announce military cooperation plans early next month.
Assault follows a deadly IS strike in the Iraqi capital on Sunday.
Officials say "administrative measure" aimed at protecting M.P.s' privacy.
More than hundred civilians dead in the town of Manbij since May.
Port city rocked by a string of IS suicide bombings in recent weeks.
Demonstrators defy government warning of strict action against rally.
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