Critical infrastructure

Drones reported to hit Yandex data centre in Sasovo; site suspended after fire

Sasovo, Ryazan region, Russia08 Oct 2026 · statement dateapproximate location

Reuters reported that drones hit Yandex's Sasovo data hub in Russia's Ryazan region, one of the company's five large data centres, in what it called the first major attack on a Russian data hub. The site suffered a fire and was suspended.

Drone presenceReported[1]

ImpactConfirmed[1][2]

AttributionSuspected[2]

Claims and evidence

2 sources · 2 original statements

Sources that repeat the same original statement count once: a number of articles is not a number of independent confirmations.

Claim	Original source	Assessment
Drone Yandex said drones hit its data centre. Source passage [1] “Drones hit a data centre owned by Russia's Yandex” Passage checked word for word against the source on 12 Oct 2026.	Yandex via Reuters, republished by The Star	supports The company's own statement, via Reuters; the basis for 'drone reported'.
Impact Yandex said the attack caused a fire and forced it to suspend operations at the Sasovo site. Source passage [1] “Yandex said the attack on its Sasovo hub, one of its five large data centres, caused a fire and forced it to suspend operations at the” Passage checked word for word against the source on 12 Oct 2026.	Yandex via Reuters, republished by The Star	supports The operator's account of the damage; the basis for 'impact confirmed'.
Attribution Al Jazeera reports that a Ukrainian attack shut down the Sasovo hub. Source passage [2] “a Ukrainian attack shut down a major data hub in Sasovo in the Ryazan region” Passage checked word for word against the source on 12 Oct 2026.	Al Jazeera	context only Attributes the attack to Ukraine without citing an official claim; attribution stays 'suspected'.

Original statements

Yandex · repeated by sources [1]
Al Jazeera · repeated by sources [2]

What we know

The Sasovo hub suffered a fire and was suspended; Yandex said it was restoring affected services and that its core consumer services were not affected. Yandex Cloud told customers of problems with the electricity supply to one data-centre zone.

The fire and suspension were reported by Reuters and acknowledged by Yandex, the operator. The involvement of drones is reported by Reuters; the cited sources do not include an independent technical verification of the weapon.

What remains unknown

The extent of the damage and whether equipment at the site can be restored are not established in the cited sources.

Operator attribution: Suspected. Al Jazeera describes it as a Ukrainian attack. Ukraine did not explicitly confirm the strike in the cited sources. [2]

How the story changed

08 Oct 2026
Reuters reported that drones hit the Sasovo data hub; the site suffered a fire and was suspended. [1]
09 Oct 2026
A day later, Yandex said a second data centre, in the Kaluga region, was struck by drones. [2]

Original sources (2)

2 source families · a count of sources is not a verification score

1Reuters, republished by The Star: Drones hit Yandex site in first major attack on Russian data hub08 Oct 2026 · source family: reuters 2Al Jazeera: Ukraine takes aim at Russia's AI data infrastructure09 Oct 2026 · source family: al-jazeera

Editorial changes

Revision 3 · 12 Oct 2026Added claim-level evidence: each key claim with its source passage, original source and assessment; passages checked word for word against the sources.
Revision 2 · 12 Oct 2026Added drone types and numbers as named by the cited sources, and background on documented drone types of the attributed party.
Revision 1 · 12 Oct 2026Curated dossier created after checking the cited sources line by line.

Cite this dossier

DroneLedger. “Drones reported to hit Yandex data centre in Sasovo; site suspended after fire.” Dossier yandex-sasovo-data-centre-2026-10-08, revision 3, updated 12 Oct 2026. https://droneincidents.com/incident/yandex-sasovo-data-centre-2026-10-08/

Cite the revision you used: later revisions may change evidence states.

Curated dossier · sources checked line by line on 12 Oct 2026
Dossier updated 12 Oct 2026

Editorial pack (print / PDF)Follow this dossier (feed)Earlier versions