The Russian government has urged caution against speculating on the causes of a plane crash in Kazakhstan that claimed 38 lives. Amidst suggestions that the Azerbaijani Airlines plane may have been struck by air defense systems, officials stress the need for a thorough investigation. President Ilham Aliyev declared a national day of mourning as experts weigh in on potential causes, with one survivor recounting a catastrophic moment just before the aircraft’s landing. The investigation is ongoing, and authorities have recovered the flight data recorder.