Explosion at Bulgarian ammunition depot prompts sabotage investigation

Fire spreads through ammunition warehouses

An explosion at an ammunition-storage complex in central Bulgaria triggered a large overnight fire and a formal investigation into possible sabotage. The facility near Tsareva Livada is operated by EMCO, a Bulgarian arms company whose ammunition has been supplied for Ukrainian use. Regional authorities said flames spread from one warehouse to another, but no injuries were reported. The Kyiv Independent published the development on September 12 with an editorial photograph from an EMCO exhibition.

EMCO attributed the destruction to sabotage, arguing that the affected warehouse had been unused for months and had recently passed an Interior Ministry inspection. Bulgarian officials have not adopted that conclusion. Interior Minister Ivan Demerdzhiev said investigators were examining external interference while also considering shortcomings in storage conditions and site security. He announced inspections of other ammunition warehouses, making the immediate official response broader than a single fire inquiry.

A vulnerable European supply chain

The incident matters because it is the second fire at an EMCO site in little more than a month and follows a long history of investigations involving Bulgarian defence facilities. Earlier Bulgarian cases examined explosions at warehouses holding ammunition intended for Ukraine and Georgia. Investigators have also studied possible connections among those blasts, the poisoning of EMCO owner Emilian Gebrev and the 2014 destruction of ammunition depots in the Czech Republic. Russia has denied involvement in the earlier incidents.

The wider security context is unusually sensitive. NATO said on September 10 that sabotage, arson, cyberattacks and other hybrid activity across Europe were increasing, after a separate incident at Leipzig airport. The alliance promised solidarity with Germany and said hostile activity would strengthen rather than weaken support for Ukraine. That statement does not attribute the Bulgarian explosion, but it establishes why European authorities are treating unexplained damage at defence-linked sites as a strategic security problem.

For Bulgaria, the investigation now has two linked tasks: determine the physical cause of the fire and establish whether security failures created an opening for deliberate interference. The distinction is important because EMCO’s assertion remains an interested-party claim, not an official finding. Investigators will need forensic evidence before assigning responsibility, and no country or organisation has been formally blamed.

The next indicators will be the results of the warehouse inspection, any evidence of unauthorised access, and whether prosecutors combine the case with earlier EMCO incidents. Authorities’ promised checks at other sites may also show whether the government sees a systemic protection problem. Until those findings emerge, the confirmed development is an explosion and fire under sabotage investigation—not a confirmed foreign attack.