Dozens dead in Moscow - IS claims responsibility for attack. Russia's Central Investigative Committee has opened a case into a suspected "act of terrorism" Russia's Ministry of Civil Defense said that the building, which also houses a concert hall with thousands of seats, was engulfed in flames over an area of ​​13,000 square meters.

Western embassies had recently warned of terrorist attacks in Moscow. The Kremlin described this as a provocation by the West. The head of the Federation Council, the upper house of the Russian parliament, threatened the masterminds of the attack with retaliation.