The Russian armed forces lost the newest Su-57, Ukrainian OSINT channels claim that on October 29, on the territory of the Akhtobinsk airport in the Astrakhan region, as a result of an emergency situation when starting the engine, a fifth-generation Russian fighter plane of the Su-57 type burned. The Ukrainian OSINT channel "Absolutely Nadiyne Dzherelo" writes about it. The Russian side has not yet confirmed the loss of the plane. The Ukrainian channel writes that this is the fourth Su-57 lost by Russia in 2026. But ASTRA wrote about the defeat of one Su-57 in May and another loss of the Su-57 in July of this year. The estimated cost of one Su-57 is estimated between 35 and 100 million dollars.