Russian tech giant Yandex's data center in Sasovo burned out from the inside, a Ukrainian OSINT analyst wrote on 22 October. On cloud-free satellite images, he saw almost no significant holes in its roof. Ukrainian drones hit the site overnight on 8 October.

Sasovo was the first strike on a data center in Russia. It came two weeks after Russia destroyed data centers in Kyiv. Drones then hit Yandex sites in Vladimir and Kaluga, a Sber data center, and a VK data center near St. Petersburg, which VK acknowledged. In occupied Donbas, monitoring channels reported hits on buildings housing telecom operators.

What the analyst sees

The analyst, who goes by Harbuz, runs the Ukrainian OSINT channel Dnipro Osint. His roof reading comes from the images. His interior claim comes from what he called available information: he wrote that a fire broke out inside and put part of the equipment out of action.

In an earlier post, Harbuz wrote that a third of the data center had burned out. In the new one, he writes that the building burned out from the inside. He does not say whether he revised the earlier figure.

Russian outlet Agentstvo studied Airbus images from 12 October. It found damage on about a third of the building. Unlike Harbuz, though, Agentstvo described a blackened western roof with damage resembling holes.

What Yandex says

On 8 October, Yandex stated that the attack caused a fire and forced it to suspend operations at the site, which hosts tens of thousands of servers, Reuters reported. Yandex Cloud and the Disk and Documents services that run on it ran with major disruptions that morning, Russian outlet The Bell reported.

Later that day, the company stated: "The scale of the damage to the infrastructure is still being assessed. For the moment, we cannot confirm whether it is possible to restore the data centre equipment in Sasovo." Two of Yandex's three supercomputers, used to develop its AI model, are housed there.

The same day, journalists asked Ukrainian President Volodymyr Zelenskyy whether Ukraine was targeting Russian data centers. He did not refer specifically to the Yandex strike, Reuters noted, but said: "We always respond in mirror-like fashion."

Russian missiles and drones killed one person and injured 24 in Kyiv overnight on 22 October, the Kyiv City Prosecutor’s Office said. Damage spread across six of the city’s districts, the city military administration reported.

The strike came hours after Kremlin aide Yuri Ushakov said Putin had told Witkoff that Russia was “in principle” ready to resume three-way talks with the US and Ukraine in mid-November. President Volodymyr Zelenskyy read the overnight attack as a sign that Russia’s attitude has not changed. A day earlier, Russian drones killed two people in a 24-story Kyiv apartment block.

21 ballistic missiles in three waves

Russia fired 21 ballistic missiles at Kyiv overnight, Zelenskyy said. The barrage came in three waves, around 22:00, at about 02:00, and around 03:30.

Across Ukraine, air defenses downed or suppressed 181 of 210 Russian drones, the Air Force said. Its report did not mention any ballistic missiles shot down.

One killed in the Dniprovskyi district

The only death in Kyiv came in the Dniprovskyi district, on the city’s left bank. There, Russian strikes destroyed 13 detached houses on several streets, prosecutors said. Police said the man killed was 48 and that six people were injured in the district, four of them children, the youngest aged five.

Of the injured, five are minors and two are young children, and prosecutors reported acute stress reactions among them. A 16-year-old boy is in hospital with a closed head injury, prosecutors said. Sixteen of the injured were hospitalized, the city military administration said. The final number of injured is still being established.

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Ambulance station and monastery damaged

In the Holosiivskyi, Obolonskyi, Pecherskyi, and Sviatoshynskyi districts, the attack damaged eight apartment buildings, prosecutors said. It also damaged a building-supply hypermarket, a restaurant, a monastery building, a post office, and office premises.

In Pecherskyi, Russia damaged an ambulance station and six ambulances, Kyiv Mayor Vitali Klitschko wrote. The State Emergency Service said eight people were injured in that district, three of them children, and reported damaged transport infrastructure in the Darnytskyi district.

Bridge closed, metro line split

The strikes damaged metro infrastructure on the Pivdennyi (Southern) Bridge, Kyiv Metro said. As of the morning, green-line trains ran in two sections, Syrets–Vydubychi and Osokorky–Chervonyi Khutir. Inspections and repairs would continue after the all-clear, the metro said.

Oleksii Biloshytskyi, head of Ukraine’s Patrol Police Department, announced that traffic across the bridge toward the left bank was temporarily closed. The city is adding buses on routes 22 and 91, the city administration said. Russian drones had already hit the bridge repeatedly in early October.