IS terrorist militia behind attack in Moscow? Contradictory statements from the USA and Russia. A letter of responsibility from the IS terrorist militia is circulating, but Russian media see it as a “fake”.
Terror expert Peter Neumann from King's College in London also believes that the terrorist militia's letter is genuine. US information provided Germans on IS terror in Moscow: US sources, citing intelligence information from Washington, told CBS News that there were indeed findings that IS was behind the attack.