Ukrainian drones struck St. Petersburg’s oil terminal, a fuel depot, an Ozon distribution center, and a VK data center overnight, setting off fires across the city, monitoring channels reported. Russian outlet Meduza called it apparently the largest attack on the city and Leningrad Oblast since the war began. Russian officials acknowledged fires, damaged homes and substations, and power cuts.

Russia keeps fighting along the front while bombarding Ukrainian cities and the grid behind it. Ukraine’s long-range drones, in turn, target the oil exports and logistics that fund and supply that war, and Russia’s Baltic oil ports have been hit repeatedly this year. St. Petersburg is a symbolic place: Russia’s so-called second capital and Putin’s hometown.

Oil terminal and fuel depot on fire

Ukrainian forces struck the Petersburg Oil Terminal with FP-1 drones, starting a fire, Ukrainian drone maker Fire Point said. The company described the terminal as one of the region’s largest, handling 12.5 million tonnes of petroleum products a year, including for export.

St. Petersburg Governor Aleksandr Beglov acknowledged fires at the terminal and in four city districts, adding that Pulkovo airport had restricted flights. By morning, firefighters were still battling blazes at the terminal, the Ruchyi oil depot, and industrial warehouses in the Kolpinsky district, he wrote. He claimed one person was killed and five injured. Ukrainian monitoring channel Exilenova+ reported that the Ruchyi depot had been burning since the night.

Ozon hub, VK data center, and a bridge

An Ozon distribution center in Kolpinsky district caught fire after the attack, the company said, Russian independent outlet Astra reported. Astra’s open-source intelligence analyst described it as one of Ozon’s busiest fulfillment centers in northwestern Russia, covering up to 79,000 m².

FP-1 drones also hit a VK data center in Novosergiyevka, Leningrad Oblast, causing serious damage, Fire Point said. VK acknowledged a drone attack on the site but claimed its services were working normally. Leningrad Oblast Governor Aleksandr Drozdenko claimed air defenses downed 145 drones over the oblast alone. He acknowledged damage to the data center’s transformer equipment and warehouse complex, and minor damage to the Vostochnaya substation. Two other substations in Yanino went offline, cutting power to about 20,000 people, he said.

A drone also hit the cable-stayed bridge over the Korabelny fairway, part of a toll highway linking the city’s north and south, Exilenova+ reported, adding that the extent of the damage was still being clarified. The channel also reported a fire near a Russian Aerospace Forces radar company outside the village of Kaporskoye.

To reach St. Petersburg, Ukrainian drones had to cover 1,000 km across four Russian regions guarded by air defenses and electronic warfare, said Serhii Beskrestnov, adviser to Ukraine’s president on defense technology.

“And these are not cruise missiles with special systems, these are drones that fly at speeds of up to 200 km/h,” he wrote.

Strikes resume after a one-sided truce

The same night, Russia hit Ukraine’s grid again, and Ukrainian President Volodymyr Zelenskyy counted 76 Russian strikes on energy since the ceasefire was announced. US President Donald Trump declared the truce on 11 October. Ukraine paused its refinery strikes for three days at Washington’s request, but Russia struck a Kharkiv power plant within hours and kept hitting the grid. Zelenskyy then said Ukraine was resuming strikes on Russian oil and would stop again only in exchange for more US interceptors for its Patriot systems. Trump called the renewed strikes “a disgrace” and said he found Zelenskyy “more difficult to deal with than Putin.”

Ukraine has hit the St. Petersburg area before. In July, drones set fire to Wildberries warehouses near the city. In August, Ukraine began striking Ozon hubs, starting in Samara Oblast. The hubs move dual-use goods such as electronics and drone components.

Ukraine’s drone strikes on Russian tech giant Yandex thinned out social media bots, Ukrainian President Volodymyr Zelenskyy said on 12 October. Network data do show Yandex’s automated traffic collapsing after the strikes. Disinformation researchers say that traffic is search crawling, not trolls. A Ukrainian social media monitor told Euromaidan Press its own data show no clear drop in bot activity either.

Russian influence operations are a live threat to European votes. In August, the Matryoshka network fabricated news clips aimed at Sweden’s general election. German and French authorities flagged the same network targeting Germany’s local votes and French presidential hopeful Gabriel Attal. A way to switch such networks off would hand allies a new tool, which is why the claim needs testing.

The president’s claim

Addressing the Warsaw Security Forum by video link, Zelenskyy said that once Ukraine began answering Russia’s operation against Ukrainian data centers and its strikes reached Yandex, many social media platforms suddenly became a little easier to breathe on.

Many people noticed less hatred, discord, and provocation because there were fewer bots, he said. It was quite clear where those bots came from, he noted. Their disappearance once Yandex went down proves again that Europe is not the source of the problems, he added.

Lithuanian Prime Minister Mindaugas Sinkevičius said at the same forum that allies should ask Zelenskyy to strike more data centers in Russia, answering a question on how to protect their elections from interference.

Three data centers in four days

Drones first hit Yandex’s data center in Sasovo, Ryazan Oblast, on 8 October. Yandex said it shut the site down completely. The next day, a strike on its Kaluga site completely disabled several modules, the company said. Yandex calls Kaluga its largest data center, Russian science outlet T-Invariant noted.

Ukrainian drone maker Fire Point said its FP-1 long-range drones carried out that strike.

After the first strike, on Sasovo, a source at Yandex summed up the mood for The Bell: “Things are rotten. We keep working.”

Overnight on 11 October, drones hit the third site, in Vladimir. Yandex said it fully halted that data center too. Vladimir Oblast Governor Aleksandr Avdeev acknowledged an attack on “infrastructure” near the city. It started a fire and cut power to two substations serving 5,000 residents, he claimed.

What the traffic data show

Automated web requests from Yandex’s network fell to 0.4% of their two-week peak after the third strike, Cloudflare Radar data showed, Cybernews reported. That chart counts automated requests to websites, mostly from Yandex’s own search crawlers. It does not count social media posts.

The chart “has nothing to do with social media,” the Russian opposition analysis group Antibot4navalny wrote.

Russia’s overall bot traffic last week looked much like any other week. Yandex’s own figure began recovering on Sunday. Covert troll farms usually hide behind residential proxies, hacked devices, virtual private networks (VPNs), and Western cloud providers, the outlet added.

What Ukrainian social media shows so far

Yevhen Luzan tracks Ukrainian social media sentiment as an analyst at the Ukrainian nonprofit CAT-UA. Its daily reviews sample about 500 random posts. On 11 October, that sample showed an unusually small share of posts criticizing Ukraine’s authorities, he told Euromaidan Press. Accounts showing signs of bot activity made up only a few tenths of a percent of that criticism. That is within the margin of error.

The same day, though, US President Donald Trump’s deal for Russian diesel supplies dominated Ukrainian feeds. Luzan said a rally-around-the-flag effect could explain the shift, as outrage at Washington crowded out domestic stories.

“To state it definitively and draw a cause-and-effect link from this correlation would be too bold,” he said.

Across the wider pool of about 10,000 daily mentions, CAT-UA sees no significant drop in posting activity in recent days. The curve shows only the usual rises and dips around the start and end of the week, Luzan said.

“For now, even a hypothetical drop in bot farm activity dissolves entirely in the natural fluctuations of the information space,” he said.

How a crawler chart became a bot story

The claim that Russian social media bots fell by half is unproven and built on a misread chart, disinformation analyst Joohn Choe concluded in a fact-check. It traces back to an 8 October post by security researcher Jeremiah Fowler. That post said Russian bot traffic had dropped to 49%. On 11 October, radio reporter Jamie Dupree spread it on X. Tom’s Hardware then ran it under a headline calling the crawler traffic “Russian disinformation bot traffic,” wording it has since changed.

Ukrainian military analyst Tatarigami claimed that Texas separatist accounts with identical “Veteran, Christian, Father, MAGA” bios had gone quiet. He said Quebec separatists and Polish anti-EU accounts went quiet alongside them.

Polish military analyst Jarosław Wolski claimed that AfD’s online support fell 56%, posting a chart without naming its source. Another X user said “Polish” bots had vanished.

Ukrainian drones struck Rosneft's Kuibyshev refinery in Samara overnight on 22 September, hitting two primary crude-processing units and triggering a large fire, Ukrainian drone and missile maker Fire Point confirmed. The strike is part of Ukraine's ongoing campaign against the fuel infrastructure that sustains Russia's war—the same plant had to halt crude processing after a drone attack in June. The attack came one day after US President Donald Trump for the second time in a week urged Ukraine's leader, Volodymyr Zelenskyy, to stop the refinery campaign.

FP-1 drones hit both primary processing units

Fire Point said its FP-1 drones struck the Kuibyshev refinery, hitting the AVT-4 and AVT-5 atmospheric-vacuum distillation units—the plant's primary crude-processing installations. A large fire broke out on the refinery grounds. The Kuibyshev refinery is part of Rosneft and has a designed processing capacity of about 7 million tons of crude oil per year. It is located more than 900 km from the war zone in Ukraine.

Ukrainian Telegram channel Exilenova+ began reporting explosions and air defense activity in Samara Oblast at 3:50 a.m. By 4:24 a.m., the channel posted videos showing a night fire at the refinery. OSINT channel World Militaries identified the AVT-5 unit as the initial fire site.

Russian news Telegram channel Astra separately confirmed the fire at the Kuibyshev refinery.

By morning, the fire was still burning. The smoke plume stretched about 100 km across Samara Oblast, Exilenova+ reported.

The Kuibyshev refinery stopped processing crude in June 2026 after Ukrainian drones hit its AVT-4 and AVT-5 units—the same pair now struck again. Each unit processes about 10,000 tons of crude per day, or roughly 73,000 barrels. The refinery had also suspended operations after a drone attack in August 2025.

Other targets in the overnight wave

Exilenova+ also reported that Ukrainian forces struck a military base in the city of Pochep in Bryansk Oblast overnight, with fire observed at the site. Residents of Tolyatti in Samara Oblast reported explosions, and witnesses suggested the Tolyattikauchuk synthetic rubber plant had been hit, Suspilne reported.

Samara Oblast Governor Vyacheslav Fedorishchev confirmed the attack, claiming Russian air defenses intercepted "dozens of drones." He said drones "targeted industrial enterprises" but did not name which ones. Russia's Defense Ministry claimed 297 Ukrainian drones were intercepted over 14 oblasts and occupied Crimea.

Part of an ongoing campaign against Russian fuel infrastructure

Ukraine's General Staff confirmed strikes on both the Bashneft-UNPZ refinery in Ufa and the Kuibyshev refinery in Samara, with fire observed at both sites. Ukraine has been striking Russian refineries continuously for months—hitting targets in Saratov and Volgograd on 11 September, Slavyansk-na-Kubani on 14 September, Syzran on 15 September, Yaroslavl on 17 September, and Ufa on 21 September, the night before the Kuibyshev strike. Earlier, the General Staff said the campaign has disabled 45% of Russia's oil-refining capacity. The strikes have also pushed Russia's fuel crisis into Central Asia, where shortages forced Kazakhstan to seek emergency supplies.

Trump urged Zelenskyy to stop the campaign for the second time in a week during their 21 September call, telling him "don't hit diesel fuel" and blaming Ukrainian strikes—not the Iran conflict—for rising US diesel prices.

Russian authorities left residents in and around Moscow without air raid sirens or phone alerts during Ukraine's largest combined strike on Moscow Oblast, apparently to guard turnout at Russia's parliamentary elections, the Institute for the Study of War (ISW) said. The silence angered residents and even pro-war commentators as a major oil refinery burned.

For most of this war, Russia has handled strikes on its cities as a routine to be announced, warned about, and waited out. Withholding warnings during the heaviest raid yet, in the middle of a national vote, suggests authorities will trade residents' safety for the look of a calm election when a political milestone is on the line.

Sirens stayed off during the biggest raid

Ukraine hit strategic sites across the Moscow area overnight on 19-20 September, the last day of Russia's State Duma vote. Moscow Oblast officials did not switch on air alert sirens or send the SMS warnings they had used during far smaller attacks. They quietly restricted mobile service without major public notice. Ukraine struck oil and logistics targets, not polling stations, according to the experts, and authorities appeared to place high turnout above protecting civilians.

Moscow Oblast residents complained that no alert reached them, some posting on the Telegram channel of regional Governor Andrei Vorobyov before it closed comments. A prominent Kremlin-linked military blogger attacked the official response, saying it erodes public trust and that cutting mobile service does "not really help."

What the drones hit

Ukraine's General Staff reported striking the Gazpromneft-Moscow Oil Refinery in the city's Kapotnya district, one of Russia's largest plants, causing a large fire. Ukrainian manufacturer Fire Point said its FP-1 drones completely shut down the refinery, with all primary processing units damaged.

Governor Andrei Vorobyov claimed air defenses countered 249 drones across 17 municipal districts. The strike was part of Ukraine's widening campaign against the fuel sector funding Russia's war, with about a fifth of Russian refining capacity offline.