Ankara: NATO-member Turkey has tested its Russian-made advanced air defense missile system, Turkish media reports said Friday, raising the specter of a new standoff with the United States.
Turkish military and defense officials have refused to comment on the reports.
Washington strongly objected to Turkey's acquisition of the Russian anti-aircraft system and suspended Turkey from its hi-tech F-35 fighter jet program, saying the S-400 are a threat to the stealth fighter jets.
It has also warned Ankara that it risks U.S. sanctions under the Countering America's Adversaries Through Sanctions Act if the S-400 system is activated.
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Ankara insists it was forced to purchase the Russian system after Washington refused to sell it the Patriot system. It also argues that it's Turkey's sovereign right to buy the system it wants.
Russia delivered the defense system last year. Turkey had initially said the S-400 would be operational in April but delayed activating it.
During a visit to Turkey earlier this month, NATO Secretary-General Jens Stoltenberg reiterated that the Russian-made system, which has reportedly cost Turkey $2.5 billion, cannot be integrated into the NATO air and missile defense system.
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Turkey was widely expected to test the system this week, after issuing notices warning vessels and aircraft to avoid the area in the Black Sea.
US President Donald Trump is under pressure by legislators to sanction Turkey over the S-400 deal.
In 2018, Washington slapped sanctions on Turkey over the detention of an American pastor, sparking a severe currency crisis in the country. The sanctions were lifted following the pastor's release.
AP
