Ukrainian forces struck Russia's TsSKB-Progress facility in Samara overnight with FP-5 "Flamingo" cruise missiles, in what appears to be an attack on Russia's only plant that serially assembles the Soyuz-2 family of launch vehicles.
Samara region Gov. Vyacheslav Fedorishchev announced on Telegram that 2 people were injured in the strike, with no deaths reported.
Ukraine's "Sily Oborony" (Defense Forces) struck TsSKB-Progress with FP-5 Flamingo missiles, according to a statement from the Ukrainian drone-and-missile unit Fire Point, posted on Telegram.
"The Progress Rocket and Space Center is one of the key enterprises of the Russian rocket and space industry," the statement said, adding, "The center develops and produces medium-class launch vehicles, including the Soyuz-2 family, as well as spacecraft for Earth remote sensing and scientific programs."
The strike likely hit Building 106A of the facility, according to an analysis by the Ukrainian open-source monitoring account CyberBoroshno, shared by Ukraine's operational command (ЗСУ) on Telegram.
The building is part of the Soyuz launch vehicle production complex and operates as a high-cleanliness-class facility where onboard electrical systems, instruments and printed circuit boards are installed, components CyberBoroshno described as the rocket's "nervous system," including its control system, cable network and instrument compartment.
"Without this stage, the rocket cannot be assembled, even when the airframe and tanks are ready," the analysis said.
The same source said Building 106B, used for final assembly, is located nearby.
CyberBoroshno's analysis said facilities like Building 106A take longer to restore than standard production sites.
"Fire, soot and firefighting water in a high-cleanliness-class facility do not mean a roof repair; they mean requalification of clean zones, recertification of the production process, and repeated dust-contamination checks, months, not weeks," the analysis said.
It added that a sanctions-related complication compounds the problem, since the onboard electronics of Soyuz rockets rely on imported, supply-restricted components that cannot currently be readily repurchased.
The analysis described Progress's strategic significance as stemming from its uniqueness: it is the sole assembly point for the entire Soyuz-2 line, which Russia uses both to replenish its military orbital satellite grouping, including the Liana signals-intelligence and targeting system and the Persona/Razdan optical reconnaissance satellites, and to deploy its own satellite internet constellation, Rassvet, built by Bureau 1440 and launched exclusively on Soyuz-2.1b vehicles.
"There is no backup for this production," the analysis said. The full scale of the damage is still being assessed via satellite imagery, according to CyberBoroshno.
Separately, Fire Point and other Ukrainian sources described the strike's likely target as TsSKB-Progress, noting the facility develops, produces, and operates medium-class launch vehicles and spacecraft for Earth observation and scientific purposes and stating that more than 1,700 launch vehicles and 950 spacecraft of its design have been launched to date.
Andriushchenko Time, a Ukrainian Telegram channel, separately reported the strike targeted coordinates matching Building 106A and repeated much of CyberBoroshno's technical assessment.
It said one pro-Russian Telegram channel claimed six missiles were fired at the target, of which only two were intercepted.
Russia's Defense Ministry did not immediately comment on the specific target, though Samara region Gov. Fedorishchev confirmed a missile strike on an industrial facility in the region.
"The enemy carried out a missile strike on our industrial enterprise. An operational headquarters has been formed. All emergency services are working on site," Fedorishchev said in a post on social media.
"Information on the consequences, and most importantly on the injured, is currently being clarified. I will keep you informed," Fedorishchev said.
He later said two people were injured in the strike and that there were no deaths.
Fedorishchev also warned residents against documenting or sharing images of the attack's aftermath.
"Do not film or distribute photos and videos of the consequences of the (Ukrainian Armed Forces) attack. This is equivalent to working for the enemy," he wrote, noting, "Stay calm and take care of yourselves."
Samara lies more than 1,000 kilometers (621.3 miles) in a straight line from Ukrainian territory.
The strike is the latest in a series of long-range Ukrainian attacks using the domestically developed Flamingo cruise missile, part of a broader campaign targeting Russian military-industrial and energy infrastructure deep inside the country.