Early indications suggest Russian anti-aircraft system may have downed a passenger jet in Kazakhstan, confusing it for a drone. Investigations are ongoing to determine the cause of the crash.

Azerbaijan Airlines Flight 8243 was scheduled to travel from Baku, the capital of Azerbaijan, to Grozny, a city in the Russian region of Chechnya, on Wednesday, but was diverted and ultimately crashed on the other side of the Caspian Sea, less than two miles from the airport in Aktau, Kazakhstan.