The terrorist militia Islamic State has claimed responsibility for the attack in the Moscow region on Friday which left at least 40 people dead and at least 145 people injured, the IS mouthpiece Amaq Agency reported, citing unnamed sources. A security source told Amaq Agency: “Islamic State fighters attacked a large gathering of Christians in the city of Krasnogorsk on the outskirts of the Russian capital, Moscow, killing and wounding hundreds and causing great destruction to the place before they withdrew to their bases safely.” Russia’s FSB domestic intelligence agency earlier said that Russ…