On Christmas Day, a plane traveling from Baku, Azerbaijan, to Grozny, Russia, crashed in Kazakhstan, killing over half of its passengers. Theories abound regarding why the plane made an emergency landing near the Kazakhstani city of Aktau.

An Azerbaijan Airlines plane flying from Baku to Grozny that crashed near the city of Aktau in Kazakhstan was shot down by a Russian Pantsir-S air defence system. Source: Reuters, citing its sources Quote: "One of the Azerbaijani sources familiar with Azerbaijan's investigation into the crash told Reuters that preliminary results showed the plane was struck by a Russian Pantsir-S air defence system.