A criminal investigation was under way into the passenger plane crash early on Wednesday in Kazakhstan, killing at least 38 people, Azerbaijan’s leader said.View on euronews

The flight was en route from the Azerbaijani capital of Baku to Grozny, in Russia’s south, when it diverted and attempted an emergency landing in Kazakhstan.

An Azerbaijani airliner has crashed in Kazakhstan after being diverted, killing 38 of 67 people on board. Some things to know about the crash and the speculation about a possible cause: How did the plane crash?

Russian President Vladimir Putin has expressed his condolences to Ilham Aliyev, the president of Azerbaijan, over the loss of life on Wednesday in a plane crash involving an Azerbaijan Airlines plane,

Russian aviation authorities said the Azerbaijan Airlines plane had hit a flock of birds. But some experts cast doubt on that account, pointing to footage showing apparent holes in the fuselage.