Kaluga
Capital of Kaluga Oblast, 150 km south-west of Moscow; site of Yandex's largest data centre.
Yandex said on 9 October 2026 that a Ukrainian strike had completely disabled several modules of its Kaluga data centre, the company's largest, a day after drones knocked out its Sasovo site.
Last refreshed: 12 October 2026 · Appears in 1 active topic
What did Ukraine's drones knock out at Yandex's Kaluga data centre?
Timeline for Kaluga
Hosted Yandex's largest data centre
Russia-Ukraine War 2026: Ukraine strikes Yandex AI data centresBackground
Kaluga is the capital of Kaluga Oblast, on the Oka River about 150 km south-west of Moscow. It hosts the largest data centre run by Yandex, the Russian internet company, which a Ukrainian strike damaged in October 2026.
Yandex runs Russia's main search engine, maps and taxi services, so the Kaluga site supports services that millions of Russian civilians use daily.
With the Sasovo strike a day earlier, the attack on Kaluga marked Ukraine's move from fuel and military targets to civilian computing infrastructure. Zelenskyy presented it as a symmetrical response to Russian strikes on Ukrainian data centres, which puts Kaluga inside a tit-for-TAT that both sides now aim at the networks civilians rely on.
Kaluga's data centre lost several modules
Kaluga joined Ukraine's long-range target list on 9 October 2026, when Yandex said several modules at its largest data centre there were completely disabled after a strike. The company reported no injuries.
The attack came a day after drones knocked out Yandex's Sasovo site in Ryazan region. Kyiv framed the attack as payback: Zelenskyy's phrase was "our symmetrical response", after a month in which, by Al Jazeera's account, one Russian strike on a Ukrainian data centre had cut internet access for about 100,000 households. Damage at Kaluga reaches the search, maps and taxi services that millions of Russians use every day.
Was Yandex's Kaluga data centre hit by Ukraine?
Where is Kaluga in Russia?
Why is Ukraine striking Yandex data centres?
