At least 40 killed, hundreds injured in attack on Moscow concert hall

Multiple gunmen opened fire on a concert hall in Moscow, Russia, on Friday.

Related Keywords

Russia ,New York ,United States ,Ukraine ,Afghanistan ,Khorasan ,Helmand ,Moscow ,Moskva ,Sergei Sobyanin ,Andrei Vorobyov ,Associated Press ,White House National Security Advisor John Kirby ,Cnn ,New York Times ,Cox Media Group ,Islamic State Khorasan ,Islamic State ,Crocus City Hall ,Russia Prosecutor General ,Mayor Sergei Sobyanin ,House National Security Advisor John Kirby ,