Ankara is likely to buy Russian Su-57 fighter jets if Washington decides to suspend the delivery of F-35 jets in response to the purchase of Russian S-400 anti-missile systems, the Yeni Safak newspaper reported Sunday. This reported by Sputnik.

According to sources, the Russian-Turkish cooperation on military software and technology exchange discussed during Russian President Vladimir Putin's visit to Turkey on April 3 may also include the delivery of Sukhoi jets, namely the Su-57, a direct competitor of the F-35, the Yeni Safak newspaper reported.

Russia and Turkey signed a loan agreement last December to supply S-400 air defense systems to Ankara. The deal triggered disagreements between Turkey and the United States, with the latter threatening to impose sanctions against Ankara, as Washington believes that the weapon was incompatible with NATO defenses. On Friday, Putin criticized the United States for trying to force Turkey out of the deal with Russia.

On Thursday, US Senate Armed Services Committee released details of its version of annual defense policy bill. The draft, in particular, implies that the delivery of US F-35 jets to Turkey should be suspended in response to Ankara's purchase of Russian S-400 anti-missile systems.