ISIS claimed responsibility for the Crocus City Hall attack, with US intelligence confirming the Islamic State in Khorasan (ISIS-K) was responsible.
Multiple high-reliability sources confirm the core facts of this event.
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What each source reports. "Source tone" reflects the language used by the outlet — it is not an independent verification.
ISIS claimed responsibility for the Moscow concert hall attack
The IS-K attack on Crocus City Hall represents a significant failure by Russian intelligence and law enforcement.
The available open-source evidence does not suggest any more complex conspiracy theory within or against Russia.
Terrorists attacked Moscow's Crocus City Hall in March 2024, killing 145 people.
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Extraction metadata
Extracted: 2026-02-26T14:33:04.889Z
Source story: 29988