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.

Thirty eight people were killed and dozens survived a plane crash in Kazakhstan while traveling to southern Russia, according to local officials, as speculation swirls online that Russia could somehow have been responsible for the crash.

Azerbaijani authorities believe the crash of an Azerbaijan Airlines plane in Kazakhstan that killed 38 people was caused by a Russian surface-to-air missile, several media reported Thursday. The jet was en route from the country's capital Baku to the city of Grozny in Chechnya,