The Kremlin refused to comment Monday on the Islamic State group's claims that it was behind the deadliest attack in Russia in two decades, as rescuers searched for bodies amid the rubble of the burnt-out Moscow concert hall.
At least 137 people were killed when gunmen in camouflage stormed Crocus City Hall, shooting spectators before setting the building on fire in the most fatal attack in Europe to have been claimed by Islamic State jihadists.
