An Azerbaijani fighter jet crashed near the capital Baku, the Defense Ministry said on Thursday. The accident took place during a training flight.
The MIG-29 disappeared from radar at 22.00 (1800 GMT) late on Wednesday, the ministry said in a statement.
The plane is believed to have crashed in the Caspian Sea, and search and rescue efforts for the pilot have been initiated, the ministry added.
On the instructions of the defense minister, a special commission has been created to establish the causes of the crash.