Experts say evidence in the Azerbaijan Airlines plane crash in Kazakhstan points to a possible midair explosion, not an encounter with a flock of birds.

Azerbaijan's president has said the Azerbaijani airliner that crashed in Kazakhstan last week was shot down by Russia, albeit unintentionally. Ilham Aliyev told Azerbaijani state television on Sunday that the aircraft was hit by fire from the ground over Russia and rendered uncontrollable by electronic warfare.