Attack in Moscow, shootings and massacre in the concert hall: at least 40 dead and 145 injured. ISIS claims responsibility - News.com.au.

Save about a hundred people from inside the room or from the roof. According to unconfirmed information, 4 of the 5 attackers managed to escape after the massacre. All mass and entertainment events in Russia have been canceled for the next few days, while security checks on public transport and at airports have been tightened. Last March 7, the American embassy in Moscow warned its citizens of possible terrorist attacks in the following 48 hours.