Several assailants burst into a large concert hall in Moscow on Friday and sprayed the crowd with gunfire, killing at least 40 people, injuring more than 100 and setting fire to the venue in a brazen attack just days after President Vladimir Putin cemented his grip on power in a highly orchestrated electoral landslide.
It wasn’t immediately clear what happened to the attackers, and there were no immediate claims of responsibility for the raid, which Moscow Mayor Sergei Sobyanin described as a “huge tragedy” and state authorities were investigating as terrorism.