Azerbaijan Airlines’ Embraer 190 was en route from Azerbaijani capital of Baku to the Russian city of Grozny in the North Caucasus on Wednesday when it was diverted for reasons that aren’t fully clear yet. It crashed while making an attempt to land in Aktau, Kazakhstan, after flying east across the Caspian Sea.

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. Here are some things to know about the crash that killed 38 out of the 67 people on board ...

Mobile phone footage circulating online appeared to show the Azerbaijani Airlines plane making a steep descent before slamming into the ground in a fireball in western Kazakhstan.