In a shocking event, at least 60 people were killed and over 100 sustained severe injuries after a group of gunmen attacked a Crocus Concert Hall in Moscow. The attackers also tried to set the concert hall in fire. Soon after the attack, the Islamic State Group claimed responsibility of the attack by saying that they attacked a large gathering on Moscow’s outskirts and ‘retreated to their bases safely.’ As per the information available, the attackers in camouflage uniforms entered the building and sprayed bullets at the people. It was shortly after midnight when the emergencies ministry said that the fire had been contained. Dozens of ambulance crews were immediately sent to the scene and stood outside the complex in Krasnogorsk (krisnagorksh) for some time after the attack.