Drones attacked a Russian tax-service data center overnight on 23 October, Ukrainian monitoring channel Exilenova+ reported. A chemical plant in the Urals was also attacked, and a fire broke out near a Russian bomber base by late morning. Russian officials admitted injuries and damage but blamed falling debris. Ukraine has not commented.

Ukraine's long-range drones have widened their target list from Russian refineries to the servers and chemicals that keep Russia's state and war industry running.

The tax service's data center in Gorodets

The target in Gorodets, Nizhny Novgorod Oblast, is one of the Federal Tax Service's two key data centers, which work as a geographically distributed pair. It stores and processes state registers, including tax databases, Exilenova+ said. The extent of the damage is unconfirmed. The site lies about 785 km from Ukraine's northern border in a straight line.

The moment of impact at Russia’s Federal Tax Service data center in Gorodets last night. pic.twitter.com/PftC6keRpY

— Exilenova+ (@Exilenova_plus) October 23, 2026

Eyewitness footage shows a blast and fire in the area of the data center, which serves both the tax service and the Finance Ministry, Russian Telegram channel Astra found. The center opened in 2015. Mikhail Mishustin, then head of the tax service and now Russia's prime minister, attended the launch.

Nizhny Novgorod Governor Gleb Nikitin claimed air defenses repelled 19 drones. Falling debris injured three people in the Gorodets district and damaged several homes, an educational facility, and an infrastructure facility, he said, and local schools switched to remote learning. A Pantsir air defense missile hit a house, Exilenova+ claimed, though officials recorded it as a drone hit.

This month, drones already hit three Yandex data centers and a VK data center near St. Petersburg.

A chemical plant behind Russia's gunpowder

In Berezniki, Perm Krai, smoke rose over Uralchem's Azot plant as air defenses fired, Astra reported. The regional security ministry announced a drone attack at about 06:00, and authorities closed the airspace within 50 km of the city. Ukraine's long-range Liutyi drones visited Berezniki, Exilenova+ wrote.

Our old friends, the Liutyi drones, paid Berezniki a visit today. Haven’t seen them in a while. pic.twitter.com/NXuhIJ3xpm

— Exilenova+ (@Exilenova_plus) October 23, 2026

The attack on Azot was continuing in the morning, the channel wrote, adding that the plant covers about 140 hectares with some 90 production buildings. It makes ammonia, nitric acid, ammonium and potassium nitrate, and urea. Russian defense plants use its nitric acid to make explosives and gunpowder, including the Perm gunpowder plant, Astra said. Berezniki lies 1,500–1,600 km from Ukraine's border and the war zone.

Drones attacked Azot before, on 11 September. Earlier this year, Ukraine's Security Service hit Lukoil's refinery in the same region.

Fire near a Su-34 base in Voronezh

Late in the morning, Voronezh Governor Aleksandr Gusev declared a missile alert, and explosions followed in the city. Gusev later claimed air defenses downed several "jet-powered aerial targets." Debris set dry grass on fire in a suburb and damaged outbuildings and several cars, he said, adding that no one was hurt.

Missile alert in several regions of the Russian Federation.

Explosions have been heard in Voronezh. We are assessing the situation. pic.twitter.com/GY0NRZTo4x

— Exilenova+ (@Exilenova_plus) October 23, 2026

Eyewitness footage shows fire and smoke near Baltimor military airfield, Astra found. The strike preliminarily hit the grounds of a former military aviation engineering university and a nearby parking area for military aircraft, Exilenova+ said.

Baltimor hosts the 47th Guards Bomber Aviation Regiment, whose Su-34s Russia uses to strike Ukraine, Militarnyi reported, saying Ukraine attacked the airfield with missiles. Voronezh lies about 185 km from Ukraine's border. Smoke rose over the base after an attack on 27 May, and a fire broke out near it on 2 September.

Moscow counts drones, Kyiv stays silent

Russia's Defense Ministry claimed it downed 443 drones overnight over 20 Russian regions, including Nizhny Novgorod Oblast and Perm Krai, as well as Russian-occupied Crimea and two seas. Ukraine's General Staff has not reported on the strikes. A night earlier, drones reportedly hit a sanctioned weapons plant near Moscow.

Russia's air defenses now have to cover state servers and Ural chemical plants as well as the airfields its bombers fly from.

Overnight on 14 and 15 October, the Ukrainian navy fired a clutch of Long Neptune cruise missiles at Borisoglebsk air base in Voronezh, in western Russia some 260 km from the border with Ukraine.

The results were devastating. The ground-launched Neptunes struck the tarmac where six Russian air force Sukhoi Su-34 fighter-bombers were parked nearly wingtip to wingtip in uncovered positions.

Satellite imagery from the morning of 15 October depicted piles of smoldering wreckage. The navy said it hit all six jets. Ukrainian President Volodymyr Zelensky said four Su-34s were destroyed and a further two were damaged. "I thank the warriors of the Ukrainian navy for their precision!" he wrote.

The jets, he said, were loaded with aerial bombs and ready for new strikes on Ukraine. An analyst reading the imagery counted wreckage of two to four aircraft and two empty spots where damaged jets had been moved.

An Airbus Pléiades satellite image from 11 October, four days before the strike, showed the six Su-34s on open aprons. Next to them were structures that the Russian independent outlet Istories said looked like anti-drone nets or their frames. Nets can snag a small drone. A cruise missile goes through.

At roughly $50 million apiece, by the Ukrainian Air Force's estimate, the four destroyed jets alone cost Russia some $200 million. The twin-engine, two-seat, supersonic Su-34 is the Russian air force's best fighter-bomber. Almost every day, Su-34s lob KAB precision glide bombs at Ukrainian troops and civilians.

Satellite images of Borisoglebsk Air Base as of October 15, 08:25 UTC

On the night of October 15, several Su-34 were destroyed at Borisoglebsk Air Base. pic.twitter.com/3ZNBWhU6UD

— AviVector (@avivector) October 15, 2026

In nearly 56 months of hard fighting in Russia's wider war on Ukraine, the Russians have now lost no fewer than 37 Su-34s destroyed, with several more damaged, by open-source counts. Sukhoi continues to deliver new Su-34s in small batches, the latest handed over on 7 October, helping the Russians sustain their overall inventory despite heavy losses.

They've still got plenty of Su-34s, but that doesn't mean the Russians shouldn't worry. As long as they're parking warplanes out in the open within range of Ukraine's best deep strike munitions, those planes are vulnerable to attack. Russia's air defenses are spread too thin to intercept every Ukrainian munition.

Satellite imagery showing the aftermath of a Neptune missile strike on six Su-34 fighter-bombers at Borisoglebsk Airfield.

Coordinates: 51.36315, 42.18560 pic.twitter.com/7TNpxGIaB0

— Dnipro Osint (@GarbuzYe) October 15, 2026

The strike may also hit the Russian air force's training pipeline. Borisoglebsk air base is home to the 160th Aviation Training Regiment. The regiment operates Yakovlev Yak-130 trainers for more basic flight training plus—for more advanced training—front-line combat aircraft including Su-34s, Sukhoi Su-35s, and Sukhoi Su-30s.

Russian bloggers are aghast, according to a round-up of posts on Russian social media by analyst ChrisO_wiki. "How is it that, four years after the start of the Special Military Operation, there are no protective structures for aircraft at airfields located within range of Ukrainian air strikes?" blogger Ramsay wrote. "And where did the billions of rubles allocated for their construction go?"

"Much can be said about the need to build a sufficient number of concrete shelters at all airfields," blogger Vladimir Romanov pointed out. "Reality shows that, to date, sufficient measures have not been taken."

Close parking

Ramsay asked why the Su-34s were concentrated in one area, apparently so that ground crews could quickly service all of them with a single ground power unit, a mobile generator that starts an aircraft's systems before flight. "How is it that the APA, a utilitarian piece of equipment, has become so scarce that it forces an entire group of combat aircraft to be parked in a single area, making them an ideal target for attacks?"

The best defense is an active one, however, the Fighterbomber channel stressed. "Protecting aircraft by the usual method of moving them out of the line of fire at such ranges from long-range strike systems won’t work here; the only way to defend against them is with a full-scale, echeloned air defense system—both ground-based and airborne."

1/ Russian warbloggers are furious at the news that a Ukrainian missile has destroyed between 4 and 6 Su-34 jets on the ground at a Russian airfield. How is it possible, they ask, that the Russian air force is still parking aircraft close together without protection? pic.twitter.com/BrTvfCMRfH

— ChrisO_wiki (@ChrisO_wiki) October 15, 2026

Ukrainian planners know this. Which is why, for more than a year now, they've been systematically striking Russian radars, surface-to-air missile batteries, and mobile air defense systems. By March, Ukrainian forces were “collaps[ing] the layered defensive architecture that the Russian integrated air defence doctrine depends upon to function,” according to an in-depth investigation by Tochnyi.info.

The strikes on Russian air defenses—at least 492 of them between June and early March—are part of a carefully scripted plan. Destroying the right air defenses faster than the Russians can replace them has the effect of “facilitating strikes on more critical targets deep within Russian territory,” Tochnyi.info explained.

The critical targets include air bases such as Borisoglebsk and the expensive warplanes parked on its tarmac.