Unverified video of the crash showed the plane, which was operated by Azerbaijan Airlines, bursting into flames as it hit the ground on the seashore, and thick black smoke then rising. Bloodied and bruised passengers could be seen stumbling from a piece of the fuselage that had remained intact.
Kazakhstan’s emergencies ministry said in a statement that fire services had put out the blaze and that the survivors, including two children, were being treated at a nearby hospital. The bodies of the dead were being recovered.
Azerbaijan Airlines said the Embraer 190 jet, with flight number J2-8243, was flying from Baku to Grozny, capital of the Chechnya region in southern Russia, but had been forced to make an emergency landing around 3 km (1.8 miles) from Aktau in Kazakhstan.
Aktau is on the opposite shore of the Caspian Sea from Azerbaijan and Russia.
Commercial aviation-tracking websites tracked the flight flying north on its scheduled route along the west coast of the sea before its flight path was no longer recorded. It then reappeared on the opposite, east coast where it circled near Aktau airport before crashing into the beach.
Authorities in Kazakhstan announced a government commission had been set up to investigate what had happened and its members ordered to fly to the site and ensure that the families of the dead and injured were getting the help they needed.
Kazakhstan would cooperate with Azerbaijan on the investigation, the government added.
Russia’s aviation watchdog said in a statement that preliminary information suggested the pilot had decided to make an emergency landing after a bird strike.