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 Airlines said Friday the passenger jet that crashed in Kazakhstan on Christmas Day experienced “physical and technical external interference,” according to an early investigation. At least 38 of the 67 people on board the plane were killed in the crash,

Moscow on Thursday warned against speculation that Russian air defenses may have caused the crash of an Azerbaijan Airlines plane in Kazakhstan this week that killed 38 people. Kremlin spokesperson Dmitry Peskov told reporters that it was “necessary to wait for the end of this probe” before casting any speculation. “It would be wrong to…