Turkey has rejected the US proposal to send its Russian-made S-400 air defence system to Ukraine, Turkish Foreign Minister Mevlut Cavusoglu said.
Washington suggested Turkey should hand over control of the S-400 system to the US or another country, the semi-official Anadolu Agency quoted Cavusoglu as saying.
"The US asked us to send the S-400s to Ukraine, and we said no," Cavusoglu said.
He added that these proposals were unacceptable for Turkey because they directly concerned Turkish sovereignty, Xinhua news agency reported.
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Tensions between the US and Turkey escalated when Ankara and Moscow struck the S-400 deal, as Washington claimed that the S-400 system would be incompatible with the NATO system and may expose its confidential military information to Russia.
Washington later halted the delivery of F-35 fighter jets to Turkey and imposed sanctions on Ankara for its purchase of a Russian-made system.
