Moscow : Russia said on Saturday it had arrested all four gunmen suspected of carrying out a shooting massacre in a concert hall near Moscow, and President Vladimir Putin pledged to track down and punish those behind the attack.
Russia’s state Investigative Committee said 133 people had been killed. State TV editor Margarita Simonyan, without citing a source, had earlier given a toll of 143.
In a televised address, Putin said 11 people had been detained, including the four gunmen.
