"First, we do not quite understand to what extent we can trust the cited data, what it is based on... what information sources that organization has... We tend to doubt the credibility of that information," Sputnik news agency quoted Kremlin spokesperson Dmitry Peskov as saying.
Those who have joined terrorists and were fighting against Russian servicemen "are criminals doomed to be destroyed", Peskov added.
The report, released on Tuesday by the Soufan Group, a New York-based security consultancy, claimed that Russia was the largest source of foreign militants in the IS in Syria and Iraq, with nearly 3,500 militants from Russia alone.
(This story has not been edited by Social News XYZ staff and is auto-generated from a syndicated feed.)
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Doraiah Chowdary Vundavally is a Software engineer at VTech . He is the news editor of SocialNews.XYZ and Freelance writer-contributes Telugu and English Columns on Films, Politics, and Gossips. He is the primary contributor for South Cinema Section of SocialNews.XYZ. His mission is to help to develop SocialNews.XYZ into a News website that has no bias or judgement towards any.