Polish PM calls fire at WB Electronics drone plant in Skarżysko-Kamienna deliberate sabotage; second fire under investigation in Lublin
Polish Prime Minister Donald Tusk said on 2 September there is no doubt that the fire at the WB Electronics (Grupa WB) drone-production plant in Skarżysko-Kamienna, Poland, was a deliberate act of arson and sabotage. A separate fire at aviation-components maker JFG Composites in Lublin is also under investigation, though Tusk said no direct evidence of intentional arson has yet been found. Poland's National Prosecutor's Office has opened an investigation into foreign intelligence involvement and a possible terrorist offense in connection with the WB Electronics fire.
Key points
- Fire broke out at WB Electronics (Grupa WB) drone plant in Skarżysko-Kamienna overnight on 30–31 August 2026
- Tusk said on 2 September there is no doubt the WB Electronics fire was deliberate arson and an act of sabotage
- WB Electronics manufactures unmanned aerial systems used by the Polish and Ukrainian armed forces
- Police were alerted to an intrusion on the plant grounds; surveillance reportedly recorded an unidentified person in a balaclava climbing the fence (unofficial)
- A backpack and a hoodie were later found near the WB Electronics premises
- A separate fire occurred at JFG Composites in Lublin, which makes aircraft components; Tusk said there are no direct proofs of arson but the version cannot be ruled out
- Poland's National Prosecutor's Office opened an investigation into foreign intelligence activity against Poland and a terrorist offense
- Tusk warned that Russia plans to intensify efforts to destabilize Central and Eastern Europe in the coming weeks and months
- Tusk linked the case to a 4 September parliamentary vote on overriding President Karol Nawrocki's veto of a cryptocurrency-regulation bill
Why it matters
The targeted plant manufactures drones used by both the Polish and Ukrainian armed forces, making the incident directly relevant to Ukraine's defense supply chain. By publicly attributing the fire to sabotage and opening an investigation into foreign intelligence involvement and a terrorist offense, the Polish government has framed the case as a national security event. Tusk's broader warning points to what he describes as a Russian effort to destabilize Central and Eastern Europe, and the episode also exposes the vulnerability of defense-industry infrastructure on NATO's eastern flank to covert attack.
What happened
A fire broke out at the WB Electronics (Grupa WB) drone-production plant in Skarżysko-Kamienna, Poland, during the night of 30–31 August 2026. Speaking before a government session on 2 September, Prime Minister Donald Tusk said there is no doubt the blaze was a deliberate act of arson and sabotage. WB Electronics manufactures unmanned aerial systems supplied to the Polish and Ukrainian armies.
Polish police said they were alerted after an intrusion onto the plant's grounds; responding officers found a fire inside the building and collected evidence afterward. Unofficial reports say surveillance footage captured an unidentified person in a balaclava climbing the fence, and that a backpack and a hoodie were later found nearby. Poland's National Prosecutor's Office has opened an investigation into participation in the activity of a foreign intelligence service against Poland and into a terrorist offense. Spokesman Jacek Dobrzyński, of the minister coordinator for special services, said investigators are analyzing seized materials and checking all possible versions.
Separately, a fire also occurred at a production-and-warehouse facility of JFG Composites in Lublin, which makes components for aircraft. Tusk said there are no direct proofs of intentional arson in that case, but given the nature of production, such a version cannot be ruled out.
Tusk used the moment to argue that Russia plans to intensify efforts to destabilize Central and Eastern Europe in the coming weeks and months. He also linked the sabotage narrative to a parliamentary vote scheduled for Friday 4 September on overriding President Karol Nawrocki's veto of a bill regulating the cryptocurrency market, claiming the law would complicate financing of terrorist activity against Poland, and urged opposition MPs and the president to reconsider their position.
Where reporting differs
Sources treat the two fires with different levels of certainty. Tusk declared the WB Electronics fire in Skarżysko-Kamienna an unequivocal act of sabotage, while for the JFG Composites fire in Lublin he said there are no direct proofs of intentional arson, though the arson version cannot be ruled out.
Reports also vary on the suspect detail at WB Electronics. Some accounts mention only that police were alerted by an intrusion onto the premises; others cite surveillance footage of an unidentified person in a balaclava climbing the fence, and still others add that a backpack and a hoodie were found nearby. These latter elements — the balaclava footage and the items found near the plant — are described as unofficial.
Background
WB Electronics, part of Grupa WB, produces unmanned aerial systems that are supplied to both the Polish and Ukrainian armed forces, which is why Polish authorities quickly treated the Skarżysko-Kamienna fire as a possible act of sabotage against a defense contractor. JFG Composites, the Lublin facility that also caught fire, manufactures components for aircraft, and that profile alone was enough to put its blaze under similar suspicion even without direct evidence.
Tusk used the incidents to push for a bill regulating the cryptocurrency market, which Polish President Karol Nawrocki had vetoed. Parliament was due to revisit the veto on Friday 4 September, and Tusk argued that the law would complicate the financing of terrorist activity directed against Poland, pointing to what he said were cryptocurrencies' role in paying for and recruiting the perpetrators of recent arsons.