The findings come amid growing speculation and reports suggesting that the Embraer 190 aircraft may have been struck by a Russian missile.

Russians who reviewed the transcript of the crew's conversations from the Baku-Grozny flight themselves admit that the air crash was caused by their air defense systems (ADS), according to Andriy Kovalenko,

On December 25, an Azerbaijan Airlines passenger plane flying from Baku to Grozny crashed near Aktau. Several Azerbaijani media outlets put forward their own versions of the causes of the tragedy.

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.

An Azerbaijan Airlines flight traveling from Baku to Grozny crashed in Kazakhstan with nearly 70 passengers onboard on December 25. Two dozen survivors are in a critical condition, according to reports.

An Azerbaijan Airlines Embraer 190 was en route from Azerbaijan's capital of Baku to the Russian city of Grozny when it crashed, killing 38 people onboard.

An Azerbaijan Airlines flight travelling from Baku to Grozny has crashed in Kazakhstan with nearly 70 passengers onboard. Several survivors are in a critical condition. Source: Radio Liberty's Kazakhstan service;