The statement comes just two days after a Pentagon spokesman warned Turkey of “grave consequences” if Ankara went ahead with the purchase of the Russian S-400 air defence system.
The United States is crossing the line over comments regarding Turkey’s purchase of the S-400 missile defence systems from Russia, warned Ömer Çelik, a spokesman for the governing Justice and Development (AK) Party.

 
Last week, a senior Pentagon general called on lawmakers from the Senate Armed Services Committee to block US deliveries of the F-35 fighter jets to Ankara if it doesn’t give up on the acquisition of S-400s. He also warned that the Russian missile defence system posed a “problem to all our aircraft, but specifically the F-35”.The Pentagon has been concerned by the possibility of Ankara acquiring Russian air defence systems along with F-35s, allegedly providing Russian experts with key insights into the radar’s cross sections, flight profile and other sensitive data related to the jet’s technology.

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