An image and video showing the Su-57, also known as T-50 or by its program name the Pak Fa (Prospective Aviation Complex of Frontline Aviation) have surfaced on Twitter, when user Wael Al Hussaini posted them on his feed.
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Hussaini also tweeted that Su-57 was deployed along with four multi-role air defense fighters Su-35, four close air support fighters Su-25 and a radar plane A-50U.
While the quality of the footage does not allow it to determine whether it is indeed the brand-new aircraft, Russian Air Forces have yet to confirm or deny the jet’s deployment in Khmemeim air base.
READ MORE: Russian Su-57's Secrets Within 90 Seconds
Russia's Reaction
Responding to the reports on alleged deliveries of the latest fighter jets to Syria, Kremlin spokesman Dmitry Peskov redirected the question to the Ministry of Defense.
"This is [a question] for the Defense Ministry. The president is the commander-in-chief, but this issue is still more within the responsibility of the Defense Ministry," Peskov said.
Designed by Russian aircraft manufacturer Sukhoi, the new Su-57 is developed for air superiority and attack roles; it’s fitted with a groundbreaking avionics system capable of autonomous calculations of the battlefield situation to assist the pilot. The fighter jet is also equipped with airborne active phased array radar, allowing it to detect air, ground and naval targets at distances far beyond most modern system, as well as to strike the enemy with a variety of modern weapons, including short, medium and long-range air-to-air, air-to-ground, and special anti-radar missiles.