Russia says 60 dead, 145 injured in concert hall raid

Russian officials say more than 60 people have been killed and over 100 injured by assailants who burst into a concert hall and sprayed the crowd with gunfire. Friday's attack came just days after President Vladimir Putin cemented his grip on power in a highly orchestrated electoral landslide. The Islamic State group claimed responsibility for the attack in a statement posted on affiliated channels on social media.