N.T.V channel reported that the Turkish President Recep Tayyip Erdogan said on Saturday that his country would not back down from its deal to buy S-400 missile systems from Russia, a day after an unofficial deadline set by Washington for Ankara to respond to another offer.
US officials put an "informal" deadline for Ankara until February 15 to respond to the rival US offer and said that if Turkey went ahead with the S-400 deal, Washington would withdraw its offer to sell Patriot missiles worth $ 3.5 billion which is produced by Raytheon company.
The officials also said this would expose the deal to sell Turkey the Lockheed Martin F-35 fighter jets and could also lead to US sanctions.
Speaking on his return from the Russian resort of Sochi, where he held a trilateral summit to discuss Syria's issue between Turkey, Russia and Iran, Erdogan said Ankara was continuing to buy the S-400.
The Turkish-American relationship has seen its worst situation following the case of US Rev Andrew Brunson, where Washington imposed sanctions on Ankara that led to the collapse of the Turkish currency.