A spokeswoman for the Alliance said in statements to the German news agency (dpa) on Saturday: “This system may represent a danger to the aircraft of the allies and affect relations between the Alliance partners.”
He expressed NATO concern over those reports and called on Ankara to seek alternative solutions with the other allies.
He confirmed the inability to integrate the “S-400” system with the air defense and anti-missile system of the military alliance, while stressing that testing the system through Turkey will be regrettable.
Earlier, Turkish media reports have stated that the Ankara government had for the first time tested Russian surface-to-air missiles in operating conditions near the Black Sea city of Sinop.
In addition, the United States excluded Turkey from the F-35 program, due to Turkey’s purchase of the Russian missile defense system, and threatened to impose sanctions on Ankara.