An An-26 aircraft flying from the Kazakh capital, Nur-Sultan, crashed while landing in Almaty on Saturday, Almaty airport said on its Facebook page.
Russia's Interfax news agency said citing a source that six people were on board the plane which belonged to Kazakhstan's border guard service, part of the National Security Committee.
It was unclear if there were any casualties, but photographs from the site showed the plane turned over and on fire.
Videos posted online also showed plumes of smoke rising from the crash site and visible from a nearby highway.
India begins voting in election as Modi seeks historic third term
Teenager charged with terrorism over Sydney bishop stabbing
Kenya's military chief among 10 killed in helicopter crash
Security Council to vote on Palestinian UN membership
Toll from Russia's deadliest airstrike on Ukraine in weeks rises to 18
