A fire broke out overnight at a Polish defense plant producing components for drones used by the Ukrainian and Polish militaries, with surveillance cameras reportedly capturing a masked person entering the facility shortly before the blaze. The fire started at around 12:23 a.m. on Aug. 31 at a WB Electronics plant in Skarżysko-Kamienna, southern Poland, according to Polish media.JOIN US ON TELEGRAMFollow our coverage of the war on the @Kyivpost_official. At roughly the same time, a security company monitoring the site alerted police after an intrusion alarm was triggered. Firefighters described the blaze as small, while police said the factory was not operating when the fire started. No injuries were reported. But investigators are examining signs that the fire may have been deliberate. A backpack and sweatshirt were found near the facility and could have belonged to the person involved, according to reports. Surveillance footage also reportedly showed an unidentified individual wearing a balaclava entering the plant by climbing over a fence. Poland’s Internal Security Agency, ABW, is now investigating whether the incident was an act of sabotage. “ABW officers are working to establish whether we can speak of an act of sabotage,” Jacek Dobrzyński, spokesman for Poland’s security services coordinator, said. Drone maker supplying Ukraine WB Electronics is Poland’s largest privately owned defense company and manufactures the FlyEye and Warmate unmanned aerial systems, both of which are used by Ukrainian forces.