An Azerbaijan Airlines flight that crashed in Kazakhstan, killing 38 people, was likely downed by a Russian air defense system, according to sources. The flight had diverted from an area of Russia where air defense systems were used against Ukrainian drone strikes. Preliminary results from the investigation suggest that the plane was struck by a Russian Pantsir-S air defense system and its communications were paralyzed by electronic warfare systems. However, Russian officials have pushed back against these claims and have called for a full investigation into the crash.