A drone attack overnight on 8 October caused a fire that hit part of Yandex's data center in Sasovo, Ryazan Oblast, about 580 km from Ukraine, and the site is fully stopped, the Russian tech company told Russian media. The data center sits on the grounds of Sasta, a sanctioned machine-tool plant, Russian outlet Astra said, citing Wikimapia data. Astra's OSINT analyst found from eyewitness footage that the fire hit the plant.

Since late September, Russia has been striking data centers in Kyiv that keep Ukraine's internet and online services running. Now a drone attack has stopped one of the data centers that Russia's largest tech company relies on.

Yandex counts the damage

Yandex warned that some services may be unavailable, while its core services kept running and no one was hurt. Ryazan Oblast Governor Pavel Malkov claimed two drones were downed, a roof caught fire at an enterprise in the Sasovo district, and windows were blown out in several homes.

The power failure took down a wide range of Yandex Cloud infrastructure, including computing capacity, networks, data storage, databases, Kubernetes, cloud services, AI, and security and monitoring systems, Ukrainian outlet ZN.ua reported, citing Exilenova+.

Ukrainian monitoring channel Exilenova+ reported that the plant was hit, without naming an attacker. The channel said Sasta, which claims a place on Russia's register of defense-industry companies, makes computer-controlled machine tools, including five-axis machining centers, and previously supplied the Tactical Missiles Corporation (KTRV) and Roscosmos. The plant's value to the arms industry lies in machines that cut precision parts, not in finished weapons, the channel said.

Citing Exilenova+, Militarnyi reported that Ukraine's Defense Forces hit the plant. It also linked Sasta to Iskander missile supply chains. No source has said whether the plant or the data center was the target, and no Ukrainian official has claimed the Sasovo strike. Sasta has been under US sanctions since November 2023, UK sanctions since February 2024, and Ukrainian sanctions since April 2025, a sanctions database shows.

Salavat: Kyiv reports a hit

Ukrainian forces hit the Gazprom Neftekhim Salavat complex in Bashkortostan, about 1,380 km from the front line, causing a fire, Ukraine's General Staff said. It said the complex processes up to 10 million metric tons of hydrocarbons a year and serves Russia's armed forces. Its key unit, the ELOU-AVT-6 primary oil refining unit launched in 2012, can process 6 million metric tons a year, Militarnyi reported. Astra's analyst placed the fire a few kilometers outside Salavat, possibly near the refinery.

Salavat Mayor Marat Zagidullin claimed that debris from several drones fell in the industrial zone that morning and started a fire.

"The enterprise continues to work," he said.

Astra noted earlier hits on the complex on 24 September 2025, on 14 July 2026, when refining fully stopped, and on 13 August 2026.

Russia's strikes on Ukraine's data centers

Russia has repeatedly hit data centers in Kyiv since 23 September. Strikes hit the COSMONOVA data center twice, the second time knocking it out, and the Parkovyi data center stopped working completely on 1 October after a series of strikes. In early October, Russia destroyed the dline.ua data center in Kyiv.

Russia has shown a drone interceptor built on the Alazan, a civilian anti-hail rocket, Militarnyi reported. The sample went on display at a weapons exhibition that Russian dictator Vladimir Putin toured at the Chebarkul training range in the Urals on 2 October.

Ukraine now sends drones at Russia by the hundreds, by Moscow's own count. Russia's Defense Ministry claimed its air defenses intercepted nearly 900 overnight into 6 October. Russia's missile-based air defense was built to repel aircraft raids and a few cruise missiles, not swarms of low-flying drones.

In May, Ukrainian intelligence said Russia was adding four regiments, 24 battalions, and 162 batteries to counter Ukrainian strike drones. The converted Alazan, which Militarnyi calls an anti-drone system, is one more piece of that search. Meanwhile, the commander of Ukraine's Unmanned Systems Forces, Robert Brovdi, said his forces struck 300 Russian air-defense assets between January and 19 September.

From hail reagent to shrapnel

Based on the size of the sample on display, the interceptor builds on the Alazan-2M or Alazan-6 series, Militarnyi assessed. The outlet put the stated cost at up to $12,000 per unit but did not say who named the figure. In civilian service, the rocket flies about 10 km, climbs up to 8 km, and carries about 0.5 kg of reagent. For air defense, the developers plan to replace that reagent with a fragmentation warhead.

Militarnyi's analysis of the published photos describes the front end as a steering assembly: four cruciform deflector fins, probably paired with a seeker or a fuze. At the rear sit folding stabilizers and the open nozzle of a solid-fuel motor, held in a metal cradle.

One sample among 300 exhibits

The Kremlin's account of the visit lists more than 300 weapons on display, including interceptor drones, but does not mention the rocket. Propaganda channel Russia 1 aired the interceptor in its report from the visit, and the Kremlin pool of state news agency RIA posted photos.

Russia's Kalashnikov concern has met its annual arms contract. The top producer of small arms has announced it delivered a batch of classic 7.62mm Dragunov sniper rifles to a Russian Security Forces customer and fully met its 2026 contract on time

The delivery shows how little the sanctions regime slows Russia's arms maker. In February 2026, Ukraine's Defense Intelligence said that nearly half of Kalashnikov's plants were still not subject to sanctions by any coalition country. Eight months later, the concern reports a full year's order delivered on schedule.

"The items were shipped on the set deadline, the obligations under the 2026 contract fully met," the manufacturer said.

A rifle in service for six decades

The weapon in that batch is not new. Designed by Yevgeny Dragunov between 1958 and 1963, the Dragunov sniper rifle entered serial production at the Izhevsk machine-building plant in 1963, so in 2026, it has remained in serial production for more than 60 years.

The self-loading 7.62mm rifle is meant to hit personnel and unarmored targets at ranges up to 800 meters, the concern said. It uses gas-operated automatics with a short-stroke piston and a gas regulator, and can fire any 7.62x54R round, though sniper ammunition yields the best grouping, according to the maker.

Sanctions chase a moving network

The sniper rifles are only one line in Kalashnikov's output. Russia's defense industry has leaned heavily on refurbishing Soviet-era armor as newer reserves run low, with Ukraine's intelligence reporting in June 2025 that Russia had begun deploying 1960s-era T-62 tanks.

The restoration work was centered primarily at the 103rd Armored Repair Plant in Atamanovka, Trans-Baikal Territory of Siberia. Ukrainian intelligence documented the transfer of 21 T-62 tanks from the eastern region to the western part.

Small arms are a different line of production, built new rather than pulled from storage. That is why a 1963 design keeps rolling off the line while the sanctions net, as Ukraine's intelligence describes it, still has holes.

Ukraine's 413th Separate Raid Regiment of the Unmanned Systems Forces struck the Snizhne Machine-Building Plant in occupied Donetsk Oblast in September, working with other Defense Forces units, the regiment posted on 6 October, sharing a video of the strike. The General Staff reported the strike on the plant on 11 September, saying that the extent of the damage was being clarified.

The strike adds to Ukraine's campaign of long-range attacks on Russian military targets as Russia has begun its winter campaign of strikes against Ukraine's energy infrastructure. Hitting the suppliers of aircraft parts goes after Russia's ability to keep its attack jets and helicopters flying.

The regiment said the plant works for Russia's military industry, producing engine components for attack aircraft and combat helicopters.

A former Motor Sich plant in occupied Snizhne

The Snizhne plant was a separate division of Motor Sich, a Ukrainian aircraft-engine maker based in Zaporizhzhia, a city that remains under Ukrainian control. Snizhne has been under Russian occupation since 2014. The plant specializes in producing parts for gas-turbine engines, including compressor and turbine discs and blades, the General Staff said. It never built whole engines. In September 2014, months into the occupation, it was machining blanks from Motor Sich's Zaporizhzhia plant into turbine blades and was one of only two plants in the former Soviet Union making such blades for helicopters, a plant worker said.

Motor Sich said in December 2017 that it had lost control of the plant. Weeks later, Viacheslav Bohuslaiev, then Motor Sich's honorary president and a member of parliament, told RFE/RL's Donbas.Realii that Motor Sich still owned the plant and had handed its management to a foreign company, while keeping it under the company's "full control."

In February 2023, Ukraine's Prosecutor General's Office served Bohuslaiev a notice of suspicion of aiding a terrorist organization, alleging that Motor Sich shipped blanks to the Snizhne plant and received finished engine parts through foreign-registered companies. The case went to court in October 2023, and Bohuslaiev, who denies the charges, has been in pretrial detention since October 2022 as the trial continues.

Snizhne, which Russia uses as a rear base, has been hit before. In May, Ukraine's Unmanned Systems Forces and the Security Service of Ukraine struck a Russian training center for drone pilots in the city, and in September, a strike on energy infrastructure cut power across Snizhne.