Russia blames IS for Moscow attack

MOSCOW — Russia on Friday said the Islamic State was responsible for coordinating the March concert hall attack in Moscow, the country's deadliest terrorist assault in two decades.

"In the course of the investigation... it has been established that the preparations, the financing, the attack, and the retreat of the terrorists were coordinated via the internet by members of Khorasan Province (IS-K)," an IS branch active in Afghanistan and Pakistan, Alexander Bortnikov, the head of FSB, was quoted as saying by the RIA Novosti news agency.