Bulgarian Ammunition Depot Fire Prompts Sabotage Inquiry

A large fire broke out at an ammunition depot in central Bulgaria on the night of September 12, according to local authorities. The blaze, which spread between multiple storage structures near the village of Tsareva Livada, marks the second significant incident at a facility operated by the arms manufacturer EMCO in recent weeks. No injuries were reported, but the event has reignited debates regarding the safety and security of European defense infrastructure.

EMCO, which supplies ammunition to Ukraine, has characterized the incident as an act of sabotage. The company stated that the warehouse had been unused for months and had recently passed inspections by the Interior Ministry, leading them to reject human error as a plausible cause. However, Bulgarian officials have adopted a more cautious stance, noting that while external interference is under investigation, there are also concerns about the conditions under which explosives are stored and secured.

Conflicting Accounts on Incident Cause

Interior Minister Ivan Demerdzhiev indicated that investigators are examining all possibilities, including sabotage and storage negligence. He noted that shortcomings in site security and the method of storing explosives could contribute to such incidents, even if external actors are involved. The minister emphasized that neglecting safety protocols does not exclude the possibility of external interference, suggesting a complex investigative landscape.

In contrast, EMCO maintained that the specific purpose of the warehouse excluded human error. The company’s statement described the incident as part of a broader pattern of attacks against the Bulgarian defense industry. This divergence in assessment highlights the tension between corporate assertions of targeted sabotage and government findings that point to systemic security failures.

History of Suspected Sabotage Operations

The current incident follows a history of allegations linking EMCO facilities to Russian state-sponsored sabotage. In 2024, Bulgarian authorities issued arrest warrants for six Russian citizens accused of involvement in explosions at ammunition warehouses between 2011 and 2020. According to Kyiv Independent, prosecutors have suggested links between these events and other incidents, including a poisoning attempt against EMCO owner Emilian Gebrev and explosions at Czech depots.

Investigative outlets such as Bellingcat and The Insider have attributed some of these actions to Unit 29155 of Russia’s GRU military intelligence agency, although Moscow has denied any involvement. The recurrence of such incidents at facilities supplying Ukraine has raised broader concerns about the vulnerability of the European defense supply chain to external threats.

Broader European Defense Concerns

The Bulgarian fire is part of a wider trend of incidents at European defense plants. In August, an explosion at an Italian ammunition plant prompted an investigation after a fire affected the production of 155 mm artillery shells. Earlier this year, six people were injured in an explosion at a Rheinmetall facility, a major supplier to Ukraine. These events have underscored the heightened risks facing the continent’s military industrial base.

Political dynamics in the region have also shifted, with Bulgaria’s government previously announcing it would cease arms supplies to Ukraine. As authorities continue to inspect other ammunition warehouses across the country, the focus remains on whether the recent fire was an isolated accident or part of a coordinated campaign to disrupt defense logistics. The coming weeks will likely see intensified scrutiny of security protocols across the sector.