# Ukrainian drones reportedly hit Yandex's largest Russian data center, cutting power to a cloud zone

Yandex confirmed Ukrainian drones caused a fire that shut down its largest data center entirely, and residents of Salavat in Bashkortostan reported explosions and a fire hours later.

- Published: 2026-10-08T05:19:03.136Z
- Canonical: https://polylog.news/2026-10-08/ukrainian-drones-reportedly-hit-yandex-s-largest-russian-dat
- Publisher: Polylog (Global desk)
- Section: geopolitics
- Sources: [Kyiv Independent](https://kyivindependent.com/russias-largest-yandex-data-center-reportedly-hit-in-drone-attack/), [BFM.ru](https://www.bfm.ru/news/620215), [Polylog editors](https://polylog.news), [Ukrinform](https://www.ukrinform.net/rubric-ato/4172129-drone-strike-hits-highrise-building-in-kyiv-injuring-four-people-including-two-children.html), [TASS](https://tass.com/politics/2199057)

Drones struck an industrial site in Sasovo, in Russia's Ryazan region, overnight and started a large fire, [the Kyiv Independent reported](https://kyivindependent.com/russias-largest-yandex-data-center-reportedly-hit-in-drone-attack/). Two open-source monitoring groups, Exilenova+ and ASTRA, identified the site as Yandex's Sasovo data center, which the company describes as its largest. The facility sits on the grounds of the Sasta machine-tool plant. Sasta makes computer-controlled metal-cutting machines used across Russian industry, including in defense, aerospace, and oil and gas. One open-source analyst account [claimed on X](https://x.com/Osinttechnical/status/2108023322156098034) that the data center has more than 35 megawatts of capacity and held nearly 2,700 Nvidia A100 processors imported before sanctions. That figure has not been independently confirmed.

Yandex later confirmed in an official statement that the drone strike caused the fire, [CNBC reported](https://www.cnbc.com/2026/10/08/russia-yandex-ukraine-drone-strike-data-center.html), and that the company fully suspended operations at the site rather than the limited, unattributed "incident" in one cloud zone it had described overnight, [Meduza reported](https://meduza.io/en/news/2026/10/08/ukraine-strikes-yandex-data-center-in-russia-sparking-fire). [TASS reported](https://tass.com/emergencies/2199081) that no one was injured and that specialists were on site addressing the aftermath. The outage-tracking service Downdetector logged more than 1,300 user reports of disruption to Yandex Cloud, Yandex Documents and Yandex Tables, while Yandex's search and taxi services kept operating normally. After the strike, Yandex blurred the locations of four Yandex Cloud data centers, including Sasovo, Mytishchi, Kaluga and Vladimir, on its own maps service, [United24 Media reported](https://united24media.com/world/yandex-hides-all-four-cloud-data-centers-on-maps-after-ukrainian-drone-strike-on-russia-23242). A dispatch carried by [France24](https://www.france24.com/en/live-news/20261008-drone-hits-yandex-data-centre-in-first-such-attack-on-russia) described the strike as the first such attack on Russian data infrastructure since the war began. That characterization has not been independently verified beyond the attribution.

Other attacks followed. In Salavat, in Bashkortostan, residents reported several explosions and then a fire after a drone alert was declared around 4:30 a.m., [the independent Russian channel Ostorozhno Novosti reported](https://t.me/ostorozhno_novosti/55704). It said there was no official information yet.

Russia is also striking Ukrainian cities far from the front. A Russian drone hit a high-rise residential building in Kyiv and injured four people, including two children, [Ukrinform reported](https://www.ukrinform.net/rubric-ato/4172129-drone-strike-hits-highrise-building-in-kyiv-injuring-four-people-including-two-children.html). [TASS quoted](https://tass.com/politics/2199057) what it described as a pro-Russian underground group, which claimed that the destruction of bridges in Kyiv is disrupting the movement of Ukrainian security forces and equipment. Claims made during the war by any side, especially about damage and military effect, are the least reliable category of information and could not be verified.

## What this means

Ukraine is extending its long-range campaign from refineries to computing infrastructure that also has military uses. That raises costs for Russian companies and state agencies that rely on domestic cloud services, and for insurers covering industrial sites far from the front. Sanctions block Russia from buying new Nvidia processors through normal channels, so each destroyed unit costs more to replace than its book value. Russia's response so far has been to strike Ukrainian cities and transport links. The market has priced attacks on Russian energy. It has not priced attacks on Russia's data and cloud services. The precedent is Ukraine's 2024-25 refinery campaign, which led Russia to restrict gasoline exports and spend more on air defense at fixed sites. The desk's read is that within weeks more strikes will hit data centers and dual-use plants inside Russia, and Russian cloud providers will spread computing work across more locations at higher cost. That read assumes Ukraine keeps its long-range drone capacity. If Yandex restores full service quickly and no further data-center strikes occur over the next month, the Sasovo attack was a one-off.

## What to watch

- How long the Yandex Cloud zone outage lasts and whether Yandex reports lasting damage. A long outage would show how concentrated Russia's domestic computing capacity is.
- Official Russian statements on Sasovo and Salavat. Confirmed damage at either site would show how far air defenses reach inside the country.
- Further strikes on Russian data centers or industrial plants co-located with them. A pattern would confirm that computing infrastructure is now on Ukraine's target list.