A drone attack damaged an industrial facility in Russia’s Perm Krai early on 25 October, injuring five workers, Ukrainian monitoring channel Exilenova+ reported. Exilenova+ identified the target as the AVISMA chemical and metallurgical plant in Berezniki, around 1,500 km from Ukraine’s border. 

The reported strike highlights Ukraine’s ability to reach industrial facilities deep inside Russia that support its military-industrial complex. 

AVISMA produces titanium materials used in aviation and aerospace manufacturing, including military aircraft, aircraft engines, missiles, and space technology, according to Exilenova+.

Regional governor Dmitry Makhonin said the industrial facility sustained damage but continued operating normally. He said five workers were injured in the attack.

A target deep inside Russia

Perm Krai lies in Russia’s Ural region, roughly 1,500 km from Ukraine’s border. The distance places the reported strike far beyond Russia’s border regions, where Ukrainian drone attacks have frequently targeted military and industrial infrastructure.

The reported attack follows a broader Ukrainian campaign against Russian industrial and energy facilities linked to the country’s war effort. 

Russia’s Defense Ministry claimed that air defenses intercepted and destroyed 532 Ukrainian drones overnight across 23 Russian regions and over the Sea of Azov, according to Russian state news agency TASS. 

The reported interceptions included drones over Perm Krai, as well as regions around Moscow and areas in southern and western Russia. The figures have not been independently verified.

The extent of damage at AVISMA and any impact on its operations have not been independently established.

• A Ukrainian drone maker was surprised by how much explosive weight soldiers loaded onto one of its drones.
• A drone's payload is limited by the weight of its battery, camera, and other equipment.
• Drone makers push technical limits, but Ukrainian soldiers often go even further.

A major drone maker said Ukrainian soldiers surprised it by packing one of its drones with more explosives than the company ever thought it could carry.

When loading up an attack drone with explosives, combat units are limited by how much weight it can carry and still fly. Batteries, cameras, and other essential equipment also take up some of that capacity. That doesn't stop soldiers from pushing the equipment to its limit.

"One of the most surprising videos I've seen recently is that one of the units has managed to put the huge explosive part on our drone," Oleg, an executive at TechEx, told Business Insider.

The drone was carrying "something like five or seven kilos, and they managed to fly into the building and put it completely to the ground with one single FPV."

"I was like, 'How do you literally put this amount of explosives on one single FPV?' But it managed to carry this on and did the mission," the TechEx exec said, speaking on the condition that he be identified only by his first name for security reasons.

TechEx lists a maximum payload of two kilograms for three of its NATO-codified fiber-optic drones: the Stalker XO-10 China-Free, Stalker XO-15 MAX PRO, and Stalker XO-13.

Weight is a major constraint for Ukraine's drone makers, who are constantly trying to accommodate more firepower and bigger batteries, as well as heavier weapons and cameras. It's a constant trade-off, with every gram mattering.

Soldiers fighting for survival often push beyond advertised limits. Last year, a sergeant major in a heavy bomber company told Army Inform, Ukraine's defense ministry media, that while a Bat drone can fly up 8 kilometers and carry up to 12 kilograms, his unit pushed it to fly a little farther and carry a little more.

Weight is an important consideration for TechEx drone development. The company advertises its "ultralight fiber optic reel" as one of its product advantages. Last year, Ukraine's Ministry of Defense characterized TechEx's Stalker series as having a "record-low spool weight among Ukrainian fiber-optic drones."

The struggle with weight is particularly acute for fiber-optic drones because, in addition to gear like batteries, they have to carry the spool containing the fiber-optic cable that trails behind them, maintaining a connection with the drone operator. The cable makes them resistant to enemy jamming, but the added weight limits how many explosives they can carry. The cable spool can weigh several kilograms on some drones.

Olha, a TechEx representative, told Business Insider that the company developed its own technology to reduce spool weight, making "tiny tweaks and changes" to how the spool is assembled and the fiber is wound into it. Those adjustments allow the company to keep the spool lightweight while maintaining a stable connection and minimizing the risk of the cable breaking during flight.

The company needs the "perfect balance" to make sure it stays reliable and durable, as not all drone pilots have a wealth of flying experience, Oleg said.

The company faces trade-off decisions. Extending the range of its fiber-optic drones, for instance, would require larger cable spools, potentially leaving less room for explosives, Olha said. But not every drone needs a heavy payload. For some, speed and agility matter more.

Ukraine's soldiers often surprise the manufacturers of their weapons with how they use and adapt their gear, with troops sometimes repairing and modifying equipment near the front lines and experimenting with new tactics.

Kuldar Väärsi, the founder and CEO of Estonian ground robot maker Milrem Robotics, previously told Business Insider that Ukrainian soldiers used the company's technology in ways it was not expecting, including adding and attaching things to the robots. "Ukrainian troops are really creative, and they really find very simple ways how to get even more out of the equipment," he said.

How gear is used in the field often informs how Ukraine's defense companies update and modify their products. Soldiers give feedback to firms like TechEx every day, and companies send their own employees close to the fight to gather feedback and make changes.

Oleg said that TechEx receives direct feedback from soldiers constantly, resulting in weekly changes to its products. Without changes, a product in Ukraine "within three months, it will be outdated, and nobody will use it, because the industry is moving extremely fast," he said.

TechEx encourages soldier experimentation, including by making its drones with parts that are interchangeable. Soldiers can swap components to repair damaged drones or combine parts to create configurations the company never designed.

"Part of what I think TechEx is really great at is the ability to customize," Olha said.

Ukrainian forces reportedly struck the MegaGRINN shopping and entertainment complex in the Russian city of Belgorod during a mass drone attack overnight on 25 October, when the mall was closed and no visitors were inside, according to the Ukrainian monitoring channel Exilenova+.

Russian authorities reported that a civilian was killed and 10 people were injured in the broader mass drone attack on Belgorod. One of the injured was an ambulance worker, according to the regional operational headquarters. 

The majority of the drones reportedly targeted one area in the city center, according to ASTRA.

Belgorod’s largest shopping complex targeted

Exilenova+ identified the reported target as MegaGRINN, Belgorod’s largest shopping and entertainment complex covering about 163,000 square meters. The facility houses more than 200 stores, a supermarket, restaurants, a cinema, and entertainment areas.

Belgorod is a Russian city about 34 kilometers (21 miles) from Ukraine’s northeastern border and roughly 70 kilometers (43 miles) from Kharkiv. The city and surrounding oblast have repeatedly come under Ukrainian drone attacks during Russia’s full-scale war against Ukraine.

Belgorod Oblast borders Ukraine’s Sumy, Kharkiv, and Luhansk oblasts. Russian forces have used the region to launch missile and drone attacks on Ukraine and to stage ground offensives across the border.

Update: Ukraine’s General Staff reports strikes on Russian radar stations in Belgorod Oblast

Update 18:00: Ukraine’s General Staff said Ukrainian forces struck Russian radar stations near Hostishchevo and Kurgannoye in Russia’s Belgorod Oblast on 24 October and overnight on 25 October.

The General Staff said the strikes would create gaps in Russian radar coverage and expand Ukraine’s ability to use unmanned systems. 

The update did not mention an attack on Belgorod city or the shopping mall.

Russia steps up attacks on Ukrainian retail infrastructure

The reported strike comes amid an intensified Russian campaign against Ukrainian retail and logistics infrastructure. These attacks have included strikes on shopping centers during business hours, including a 21 August Russian drone attack on the crowded Soniachna Halereia mall in Kryvyi Rih, where 16 people were killed and more than 120 injured.

The reported strike on MegaGRINN took place overnight, when the complex was reportedly closed and empty of visitors. Russian authorities reported casualties from the wider attack on Belgorod, but have not linked them to the mall.

• Drones in Ukraine act as flying communications bridges between operators and mission drones.
• They repeat the operators' signal to allow drones to fly farther while staying connected.
• The signal-repeating drones make other drones more resistant to Russia's electronic warfare.

Ukraine has created drones that act as flying relay towers, allowing its drones conducting missions to fly farther while making them harder for Russia to jam.

In a war where drones gather intel and account for more than 95% of Russia's front-line losses, Ukraine wants its operators to keep control of their drones over longer distances with stronger signals that are harder for Russia to break.

One solution is the signal repeater drone, a flying signal booster that operates between a pilot and a mission drone, relaying commands to the aircraft and sending back video and intelligence to the operator. Able to fly much higher than a ground antenna, airborne repeaters can extend a drone's range and help preserve the connection under pressure.

It increases the mission drone's operational range by extending how far it can fly while staying connected to its pilot. It's a similar principle to how wifi repeaters work.

Ukrainian arms maker Twist Robotics makes a signal-repeating drone, born from its Saker Scout drone.

Rostyslav Olenchyn, the company's co-founder and chief information officer, told Business Insider that the drone was widely used for reconnaissance and strike operations, but this war changes rapidly, with arms and warfighting technology quickly becoming obsolete. And without updates, this drone was at risk of falling victim to that pattern in the cat-and-mouse technology race.

Drones needed to be effective at longer ranges, and the Saker Scout's range was "not enough" for many missions. So, the drone was redesigned "for another objective. It became the signal relay station," Olenchyn said.

The Saker Scout, able to also be used in other combat roles, can extend the operational range of drones by more than 50 kilometers, according to the company.

The concept of using aircraft as signal middlemen isn't new. Militaries have used helicopters and planes to relay communications between assets and forces disconnected by the terrain, though usually troops rather than drones. These crewed aircraft, however, struggle to operate over Ukraine, but while such air assets are few and far between, drones are prolific.

Large crewed aircraft cannot "necessarily survive in the heavy saturated air of the battlefield," where drones and air defenses are a threatening presence, Olenchyn said. "So the small, versatile platform was a solution." He said that serial production of the Saker Scout with this function started in 2023.

The company's strike drone, the Signal Hunter, can also be used as a relay.

Other Ukrainian companies are also working in the space, with some updating existing drone types and some designing new ones. Roboneers, for example, developed a version of its Wardog drone that can carry relay equipment weighing up to three kilograms, and Skyriper makes the Skyriper-R Airborne Repeater, a dedicated drone with the single function of acting as an airborne repeater.

Volodymyr Zinovskyi, the CEO of the Ukrainian defense firm TAF Industries, told Business Insider that his company started making relay drones last year at the request of units, describing the technology as going from optional to essential.

Brave1, Ukraine's state-backed innovation platform, wrote last year that "the use of UAVs over long distances or in difficult terrain requires the use of repeaters - special devices that help increase the range of a stable signal several times."

Some Ukrainian drones are built for this relay mission, while others can be fitted with add-on repeater equipment.

Beyond overcoming geographical challenges, airborne repeaters also help counter Russian electronic warfare by strengthening the communications link between operators and mission drones, making it harder to disrupt, though Russia can still target the relay itself.

An analysis published by the Center for Strategic and International Studies, a US think tank, last year described the creation of relay systems as a response to growing electronic warfare tactics, including the ability that both sides have to trace drone control signals back to their source for strikes on operators, priority targets in this war.

Dmytro "Liber" Zhluktenko, a former drone operator who now serves as a lessons-learned analyst with Ukraine's 413th Unmanned Systems Regiment "RAID," told Business Insider that Ukrainian forces are "keeping somewhat a stable radio link by mass utilizing signal repeaters."

He said that some uncrewed repeater aircraft are fixed-wing drones, while some are repurposed bomber-type drones. Instead of bombs, it just carries the signal repeater," he said.

"We optimize those signal repeater carriers to just stay in the air for an extremely long time, like one hour plus," he said. "That's their only job: to be in the air." Working with strike drones, they give operators a "great radio link over the target."

Oleksiy, the commander of the 2nd UAV engineer platoon of the International Defense Legion of Ukraine, told ArmyInform, the official information agency of the Ministry of Defense of Ukraine, last year that his unit uses repeaters on drones to expand the radio horizon of the drones they want to use and fly further to target Russia.

Russia is using the technology too, including to help attack drones fly deeper into Ukrainian territory.

And these lessons aren't limited to the Ukraine war. The US military is also experimenting with ways to extend drone operations and keep operators connected from farther away. The Marine Corps, for instance, has experimented with using helicopters as FPV motherships, as well as handing off control after launch.

Though different from Ukraine's airborne repeater work, both address a similar battlefield problem, which is that drones are only useful if operators can launch them, control them, and keep receiving information at tactically relevant distances.

Olenchyn said that updates, like the signal repeating ability, are critical in combat. He said that every two weeks, the company has "a new update, new kinds of techniques, new kinds of drones or functionality which are released."

Ukraine's military satellite links work at full speed again after a cap that hobbled its drones, Ukraine's Defense Ministry said on 24 October. Hours later, SpaceX owner Elon Musk, who earlier pointed at Washington, said his company had enforced its own rules. A Ukrainian presidential adviser and a drone volunteer replied that civilian Starlink could not fly such missions.

Ukraine holds off Russia with American tools it doesn't control, so any pause decided abroad, like stalled Patriot deliveries or the Starlink cap, opens gaps in its defense. With no stated rule on what Ukraine's forces may do, the next cutoff could again come unannounced and unexplained.

Kyiv records full speed again

The ministry recorded stable connections above 400 km/h (250 mph). Before, Kyiv said, links on Starlink and its military version, Starshield, cut out above 161 km/h (100 mph).

Ukrainian President Volodymyr Zelenskyy said the restoration began overnight. "The speeds are now where they need to be," he said, citing defense against jet-powered Shahed drones. He thanked US lawmakers, the media, the State Department, and the US President, but not Musk or SpaceX.

Musk: "That loophole was closed last week"

Musk replied "Correct" to an X user who called Starlink "not a weapons system." "Ukraine military violated Starlink terms of service and used it for offensive drone strikes to kill people. That loophole was closed last week," he wrote.

He called Starshield "a different system" the US government controls, and warned: "Were Starlink to be turned off, the Ukrainian front line would collapse immediately. This is NOT a threat, it is simply a statement of fact."

Musk named no evidence, cases, or time frames. Overnight, he answered a headline on the US financial blog ZeroHedge saying he "admits" SpaceX throttled Starlink.

"We simply enforced our terms of service when they were bypassed. There has been no change to our terms of service," Musk wrote.

Explore further

Who capped Ukraine’s Starlink? “Ultimately POTUS,” Musk said. Ultimately Musk, reports now say

When the cap hit on 14 October, Musk wrote that the US government owns and controls Starshield and that the US military and "ultimately POTUS" decide any limits. US President Donald Trump, who credited Musk with the fix while Kyiv still saw the cap, said on 24 October he had spoken to Musk about Ukraine but gave no details.

Ukrainians note contradiction to reality

Ukrainian presidential adviser on defense technology Serhii Beskrestnov, known by the callsign Flash, wrote:

"It is very strange that Elon Musk doesn't know about the restrictions on Starlink operations in Ukraine."

Since winter 2026, every Starlink terminal over Ukraine, occupied areas included, has been limited to 70–90 km/h (43–56 mph), he said, and over Russia, Starlink does not work. "So we PHYSICALLY CANNOT USE COMMERCIAL STARLINK for deep strikes and mid-range strikes," Beskrestnov wrote. Deep strikes hit targets far inside Russia, mid-range ones targets closer to the front.

Ukrainian activist and drone fundraiser Serhii Sternenko called Musk's claim untrue. He said Ukraine introduced whitelists of terminals in February, and any terminal used on the move had to be listed and connected to Starshield.

"So using civilian Starlink for drone missions was technically impossible. All drone missions that needed satellite communication could be carried out only with Starshield," Sternenko added.

European governments help pay for Ukraine's Starlink service. Germany funds it under a contract that runs until April 2027. Polish Foreign Minister Radosław Sikorski, whose country pays around $50 million a year for the service, said on 23 October: "Mixing business with politics usually ends badly, especially when we talk about Elon Musk."