Polish authorities say a fire at a WB Electronics drone-component facility was deliberate sabotage. The plant produces components for FlyEye and Warmate drones used by Poland and Ukraine. “There is no doubt that it was deliberate arson, an act of sabotage.” — PM Donald Tusk Investigators are examining possible involvement of a foreign intelligence service, while reports say CCTV captured a masked intruder entering the facility. Damage is estimated at at least $4 million, with no injuries. No suspect has been charged and any Russian involvement remains under investigation.