President promises to track down those behind ‘barbaric terrorist attack’ after at least 133 killed in concert hall attack
Day of mourning in Russia as Putin vows to punish those behind ‘barbaric’ attack
Russia will observe a national day of mourning on Sunday after a massacre in a Moscow concert hall that killed more than 130 people, the deadliest attack in Europe to have been claimed by the Islamic State (IS) group.
Flags are flying at half mast, numerous events have been cancelled and TV channels have updated their schedules.
