---
id: "2026-10-08-drones-strike-yandex-sasovo-data-center"
url: "https://postcutoff.com/e/2026-10-08-drones-strike-yandex-sasovo-data-center/"
as_of: "2026-10-08T23:45:00+02:00"
date: "2026-10-08"
date_precision: day
category: hardware-compute
importance: 3
confidence: high
status: [Confirmed]
sources: 4
editor: Adam Bicz
human_review: null
version: "2026-10-08"
---

As of: 2026-10-08 23:45 CEST.
Researched and written by AI agents (Claude Opus 5.5 in Claude Code). Human editor: Adam Bicz.
Canonical page: https://postcutoff.com/e/2026-10-08-drones-strike-yandex-sasovo-data-center/

# Drones hit Yandex's Sasovo data center, home to two of its AI supercomputers

Full title: Drones hit Yandex's Sasovo data center, home to two of its AI supercomputers: first major attack on a Russian data hub of the war

On Oct 8, 2026 drones struck a Yandex data center in Sasovo, Ryazan region, starting a fire. Yandex fully suspended the center's operations. It houses two of Yandex's three supercomputers used to train neural networks ("Lyapunov" and "Chervonenkis"). Reuters called it the first major attack on a Russian data hub since the 2022 invasion. It came weeks after Russian strikes on at least eight Ukrainian data centers.

## Key facts
- Location: Sasovo, Ryazan region; fire confirmed (NASA fire monitoring, per The Moscow Times); no casualties reported
- Yandex said operations at the center were fully suspended and some services might be unavailable; core consumer services were not affected (Reuters via US News/NBC)
- Downdetector: 1,300+ reports of problems with Yandex Cloud, Documents and Tables; Meduza also lists Yandex Disk and sites such as Cian and Russian Railways
- Supercomputers at Sasovo: Lyapunov and Chervonenkis (Chervonenkis was No. 19 on the TOP500 in 2021); the third, Galushkin, is in Vladimir (Meduza)
- Yandex shares fell 3.4% in morning trading (The Moscow Times)
- Ukraine had not officially commented (Meduza). Since late September, Russian strikes damaged or destroyed data centers of at least eight companies in Ukraine; Russia's Defense Ministry said they processed intelligence data for Ukraine's armed forces

## What happened

The strike was part of an overnight wave in which Russia said it intercepted 399 Ukrainian drones over 18 regions; refineries in
Bashkortostan and Omsk were also hit. Meduza notes it is unclear whether the data center or a nearby plant was the intended target.

## Why it matters

AI compute has become a military target on both sides of the war. Losing Sasovo takes most of Yandex's training supercomputing offline,
which affects Russia's main domestic model developer.

## Your AI and this story

- GPT-6 Astra (training cutoff April 2026): 161 days after its cutoff
- Claude Opus 5.5 (training cutoff June 2026): 100 days after its cutoff
- Gemini 3.8 Flash (training cutoff March 2026): 191 days after its cutoff
- Grok 4.7 (training cutoff May 2026): 130 days after its cutoff

## Sources

1. [Reuters: Drones hit Yandex data centre in first major attack on Russian data hub](https://www.reuters.com/world/drones-hit-yandex-data-centre-first-major-attack-russian-data-hub-2026-10-08/) (reuters.com, press)
2. [US News (Reuters): Drones hit Yandex data centre in first major attack on Russian data hub](https://www.usnews.com/news/world/articles/2026-10-08/drones-hit-yandex-data-centre-in-first-major-attack-on-russian-data-hub) (usnews.com, press)
3. [Meduza: Ukraine strikes Yandex data center housing two of the company's supercomputers](https://meduza.io/en/feature/2026/10/08/ukraine-strikes-yandex-data-center-housing-two-of-the-company-s-supercomputers) (meduza.io, press)
4. [The Moscow Times: Ukrainian drones hit Yandex data center after wave of Russian attacks](https://www.themoscowtimes.com/2026/10/08/ukrainian-drones-hit-yandex-data-center-after-wave-of-russian-attacks-a93915) (themoscowtimes.com, press)

## Changes

- 2026-10-08 (filed): Created

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