Russian Federation has agreed a deal with Saudi Arabia to supply advanced S-400 air defence missiles to Riyadh, Vladimir Putin's aide has announced.
This was stated by the, reported.
Turkey's President Recep Tayyip Erdogan said talks have been held with Russian Federation on the S-500 system.
The S-400 is Russia's next-generation air defense system, carrying three different types of missiles capable of destroying aerial targets at a short-to-extremely-long range. The weapon is capable of tracking and destroying all existing aerial targets, including ballistics and cruise missiles.
Putin earlier stated the issue of production localization in Turkey will depend on the readiness of the industry of this country.
Ankara's decision to buy the S-400s has been seen in some Western capitals as a snub to North Atlantic Treaty Organisation, given tensions with Moscow over Ukraine and Syria, while the deal raised concern because the weapons can not be integrated into the alliance's defenses.
However, NATO Secretary-General Jens Stoltenberg said this week Turkey was not seeking to antagonize the US-led alliance by purchasing the system and is in talks with France and Italy to buy similar weapons.
He noted that Turkey must ensure its own security and based on this, it was chose to acquire Russian S-400 air defense system.
The much-discussed Turkey-Russia deal may signal closer ties between both countries, as well as a growing rift between Turkey and its North Atlantic Treaty Organisation allies.
Ankara also objects to some North Atlantic Treaty Organisation members' military support for Syrian Kurdish rebels, who are linked to PKK terrorists. Relations further deteriorated following an April referendum which expanded the powers of the president.