
According to Turkish newspaper Haberturk, an unnamed American official voiced his concerns over Ankara’s purchase of Russian surface-to-air missile systems.
He explained that they could “negatively influence the interoperability of NATO” and assumed that Washington could impose sanctions in response to the recently adopted law.
The official said: “We want to help Turkey find a better alternative to meet its air defence needs.”
Earlier this month, Turkish Foreign Minister Mevlut Cavusoglu spoke out against the threats aimed at the country’s purchase of the S-400.
In a press conference with American counterpart Rex Tillerson, he said: “We do not use and will not accept the language of threats.

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“Yes, the US Congress adopted a law on anti-Russia sanctions, but we need to ensure our national security.
“We would like to purchase the means to ensure it from our allies.
“We spoke to not only Russia but with other countries, too.
“We finished talks with Russia long before the Congress, only small details were left.”
The US State Department has previously threatened to apply “appropriate measures” against countries willing to buy Russia’s S-400 systems.
Turkey and Russia on Friday signed an accord for Moscow to supply Ankara with S-400 surface-to-air missile batteries, finalising a deal set to deepen military ties between Turkey and the Kremlin.
The S-400 deal, reportedly worth nearly £1.8 billion was said to be in the works for more than a year.
As part of their collective defence pledge, NATO’s allies integrate their ships, planes and weapons systems to work together and share command across the alliance.
The S-400 system cannot be integrated into NATO’s military architecture.
Since World War Two Turkey and the US have been close allies, working together to fight terrorism in the Middle East, and previously vowed to cooperate with each other to defeat Assad’s Syria regime.
However, diplomatic relations have recently turned sour between Washington and Ankara.
US military are providing support to moderate Kurdish opposition forces in Syria in the fight against Assad.
However, Ankara considers the Kurdish forces as terrorists and fear that the group may gain autonomy of Syrian land bordering Turkey with American help.
Turkish Deputy Prime Minister Bekir Bozdag has threatened to attack US special forces who were working with the Kurds.