The U.S. and Turkey failed to break a deadlock in talks over Ankara’s plans this summer to deploy Russia's S-400 air-defense systems, the Wall Street Journal cited officials as saying.
According to the Pentagon, Turkey's plans "could jeopardize U.S. fighter aircraft in the region," the newspaper wrote.
The newspaper also referred to the Turkish President’s spokesperson Ibrahim Kalin, who expressed hope that Washington will not slap sanctions on Ankara in connection with its purchasing the S-400s.
"Sanctions will be counterproductive and lead to negative consequences," he said, citing Turkey’s "well-founded" security-related concerns.
According to the newspaper, Turkey will most likely start to deploy the S-400 systems in the next two or three months, which means that Ankara and Washington are pressed for time to resolve the issue.