40 killed and over 100 injured in attack at Moscow concert hall

Several people were killed after armed men entered a concert hall in Moscow and shot at the crowd, according to Russian media reports.

At least 40 people were killed in the attack and more than 100 injured, the Russian news agency TASS reported.

Armed men dressed in combat clothing also used explosives, triggering a major fire in the town hall of Crocus, reports said.