At least 38 people were feared dead when a passenger jet crashed in Kazakhstan after it was forced to divert from its intended destination in southern Russia—an area where Moscow’s air defenses have battled Ukrainian drones in recent weeks.

Several passenger plane crashes have occurred worldwide this year, including a Wednesday morning Azerbaijan Airlines wreck that has left dozens feared dead.

The crash of an Azerbaijan Airlines flight in Kazakhstan has claimed 38 lives, with reports suggesting a possible Russian air defence missile strike. Early investigations point to missile damage after passengers reported explosions and shrapnel.