The Kremlin on Thursday warned against speculating what may have caused an Azerbaijan Airlines flight to crash, killing 38 of the 67 on board, after an aviation expert said evidence indicated that a Russian anti-missile battery may have brought down the passenger plane.

An Azerbaijan Airlines flight that crashed in Kazakhstan on Wednesday was downed by a Russian air defence system, four sources in Azerbaijan with knowledge of the investigation told Reuters.

An Azerbaijan Airlines flight from the Azerbaijani capital of Baku to Russia crashed, hospitalizing survivors while dozens are feared dead.

Azerbaijan on Thursday observed a nationwide day of mourning for the victims of the plane crash that killed 38 people and left all 29 survivors injured as speculation mounted about a possible cause of the disaster,

Azerbaijan Airlines flight J2-8243 caught fire as it tried to make an emergency landing in Aktau, southwestern Kazakhstan, on Wednesday. It was traveling from the Azeri capital Baku to Grozny, the capital of the Russian republic of Chechnya.

The Russian government has warned against promoting “hypotheses” on the causes of the crash of a passenger plane bound for Russia that resulted in the deaths of 38 people in Kazakhstan on Wednesday, a

An Azerbaijan Airlines plane crash on Christmas Day has prompted speculation the plane was shot down by Russia after it took a detour of hundreds of miles in the wrong direction and crash-landed with holes in the fuselage.

ASTANA/TBILISI/BAKU >> An Embraer passenger jet crashed near the city of Aktau in Kazakhstan on Wednesday, killing 38 people, after diverting from an area of Russia that Moscow has recently defended against Ukrainian drone attacks.

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

An Azerbaijan Airlines flight that crashed in Kazakhstan on Wednesday killing 38 people was downed by a Russian air defence system, four sources in Azerbaijan with knowledge of the investigation told Reuters.

Footage of the wrecked fuselage appeared to indicate shrapnel damage and some aviation experts suggested the Azerbaijani Airlines plane may have been been hit by air defence systems over the Russian republic of Chechnya.