- ISIS claims responsibility for attack in busy Moscow-area concert venue that left at least 40 deadCNN
- Dozens killed in concert attack near Moscow, Russia saysYahoo! Voices
- ISIS claims responsibility for deadly Russian concert hall attackFox News
- ISIS claims responsibility for Russia attack that killed at least 40 killed and injured dozens in shooting at Moscow concert hallCBS News
- Islamic State group claims responsibility for Moscow terror attackPOLITICO