Russia says it had arrested all four gunmen suspected of carrying out a shooting massacre in a concert hall near Moscow, the deadliest attack in Russia for 20 years. Militant Islamist group Islamic State has claimed responsibility for the massacre.
Russia says it had arrested all four gunmen suspected of carrying out a shooting massacre in a concert hall near Moscow, the deadliest attack in Russia for 20 years. Militant Islamist group Islamic State has claimed responsibility for the massacre.