Warsaw, Poland — Polish authorities are investigating a fire at a facility linked to Ukrainian drone production after evidence raised concerns that the blaze may have been deliberately started.

The facility, located in Poland and associated with a Ukrainian drone manufacturer, was damaged by fire under circumstances that prompted investigators to consider possible criminal involvement.

Polish prosecutors are examining whether the incident could have been connected to a wider effort by foreign actors to disrupt defense-related manufacturing. Investigators are also assessing a possible link to organized or intelligence-backed activity.

The case has attracted particular attention because drones have become an important part of modern warfare and defense technology. Facilities involved in their production can therefore become potential targets for sabotage.

Investigators are collecting forensic evidence from the site and examining circumstances surrounding the outbreak of the fire. Authorities are expected to review surveillance footage, communications and other information that could help establish whether the incident was accidental or intentional.

Polish law-enforcement agencies have increasingly focused on suspected acts of sabotage and foreign interference since Russia’s full-scale invasion of Ukraine. Officials have warned that hostile intelligence services may attempt to exploit criminal networks or individuals to target strategic infrastructure and defense-related facilities.

However, authorities have not established final responsibility for the latest incident. Any connection to a foreign intelligence service remains an investigative hypothesis unless prosecutors produce sufficient evidence to support criminal charges.

The investigation also reflects Poland’s growing role in supporting Ukraine and its defense industry. Warsaw has become an important logistical and industrial hub for Ukrainian-related defense activities, increasing the importance of security around sensitive facilities.

Prosecutors will determine whether the available evidence supports charges against any individual. Until that process is completed, no person can be considered legally responsible for the fire.

Authorities have urged anyone who witnessed suspicious activity near the facility around the time of the incident to provide information to investigators.

The investigation remains active, with Polish officials continuing to examine the origin of the fire and whether it formed part of a broader attempt to interfere with defense production.