Russia observes national day of mourning after Moscow concert hall massacre
Russia observed a national day of mourning on Sunday as investigators said the death toll from Friday's massacre in a concert hall near Moscow had risen to at least 137, making it the deadliest attack in Europe to have been claimed by the Islamic State (IS) group.
Tomas K - Moderator 
Russia observed a national day of mourning on Sunday as investigators said the death toll from Friday's massacre in a concert hall near Moscow had risen to at least 137, making it the deadliest attack in Europe to have been claimed by the Islamic State (IS) group.
