- Putin says gunmen who raided Moscow concert hall tried to escape to Ukraine. Kyiv denies involvementThe Associated Press
- Live updates: Shooting at Moscow concert venue leaves over 130 deadCNN
- What is ISIS-K, the group that attacked a Moscow concert hall?USA TODAY
- Zelensky says Russia always blames others after Putin points fingerYahoo! Voices
- Russia tightens security at transport hubs, cancels big public events across countryThe Times of India