Ukrainian military intelligence published a satellite photo claiming to show the aftermath of the attack at the Akhtubinsk base in southern Russia.
Ukraine said its forces hit an ultra-modern Russian warplane stationed on an airbase nearly 600km (370 miles) from the front lines.
Kyiv’s main military intelligence service on Sunday shared satellite photos it said showed the aftermath of the attack. If confirmed, it would mark Ukraine’s first known successful strike on a twin-engined Su-57 stealth jet, lauded as Moscow’s most advanced fighter plane.
In one photo, black soot marks and small craters can be seen dotting a concrete strip around the parked aircraft.
According to the Main Intelligence Directorate of Ukraine’s Ministry of Defense, the strike took place on Saturday at the Akhtubinsk base in southern Russia, some 589km from the front line.
The Ukrainian agency said the plane, which is capable of carrying stealth missiles across hundreds of kilometres, was among “a countable few” of its type in Moscow’s arsenal.
According to reports by Russian agencies, Moscow’s air force obtained “more than 10” new Su-57s last year, and has placed an order for a total of 76 to be delivered by 2028.
A spokesman for Ukraine’s military intelligence, Andriy Yusov, hours later said on Ukrainian TV that the attack may have damaged two Su-57 jets parked at the base, and also wounded Russian personnel.