- ISIS, Elite Snipers, 8 Kills: How Deadly Russian Prison Standoff Unfolded NDTV
- Volgograd: Four officials dead in Russian jail hostage-taking BBC.com
- Russia Quashes Deadly Prison Mutiny by Islamist Inmates The New York Times
- Inmates, Possibly Linked To ISIS, Kill 3 Guards In Russian Prison Siege, Killed After Standoff With Special News18
- Russian forces kill 4 IS-linked prison hostage takers, Volgograd Governor says some hostages dead too Firstpost