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

There are early indications that a Russian anti-aircraft system may have struck the Azerbaijan Airlines plane that crashed in Kazakhstan, a U.S. official told ABC News.

Thirty-eight of 67 onboard flight from Baku to the Chechen city Grozny believed to have been killed. Russian authorities cite bird strike.

A day after an Azerbaijani airliner’s crashed in Kazakhstan, aviation experts say the plane most likely went down after being hit by Russian air defense systems.

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.

At least 38 people were killed in an Azerbaijan Airlines crash that was likely caused by Russian antiaircraft fire, according to Ukraine and aviation experts. Photo: Azamat Sarsenbayev/Reuters

Officials in Russia and Kazakhstan are urging people to wait for an investigation into the deadly Azerbaijan Airlines plane crash before assigning blame.