After an Azerbaijan Airlines jet crashed in Kazakhstan, speculation mounted about why the plane went down and whether possible Russian air defense action may have played a role.

A plane carrying seven people injured in the Azerbaijan Airlines' Embraer 190 crash arrived at Heydar Aliyev International Airport in Baku on Thursday evening. The plane was en route from Azerbaijan's capital of Baku to the Russian city of Grozny in the North Caucasus on Wednesday when it was diverted and crashed while making an attempt to land in Aktau,