Estonia blamed Russia on Tuesday for a mid-August arson attack on Milrem Robotics, a Tallinn-based defence manufacturer supplying unmanned ground vehicles to Ukraine.
The Milrem Robotics Arson Attack and Arrests
A fire broke out overnight on August 15 at a building in the Estonian capital used by Milrem Robotics, though emergency crews brought the flames under control quickly. The facility produces THeMIS unmanned ground vehicles that have been deployed by Ukrainian forces on the battlefield.
Estonian authorities moved rapidly following the incident. Police in neighbouring Latvia detained two suspects on August 17, with a third suspect arrested the following day. All three individuals were subsequently extradited to Estonia.
Margo Palloson, the head of the Estonian Internal Security Service, told broadcaster ERR that while Russian services have been constantly planning and probing for opportunities, last month’s arson marks their first successful attack of the year. The security service formally concluded that the operation was a deliberate and pre-planned act commissioned by Russian handlers and executed by Latvian nationals living in Russia.
Tallinn Summons Envoy as Foreign Minister Cites Sabotage Campaign
Foreign Minister Margus Tsahkna announced that Russia’s charge d’affaires in Tallinn was summoned to the ministry to face formal censure over the operation.
Tsahkna stated on social media that the investigation left no room for doubt, declaring that authorities can conclude with certainty that the arson attack was orchestrated by Russian special services. Prime Minister Kristen Michal echoed that defiance on X, writing simply that his country would not be intimidated by Moscow’s hybrid warfare tactics.
Kremlin Rejects Allegations as Baseless Fabrications
Moscow rejected the accusations within hours. Kremlin spokesperson Dmitry Peskov dismissed the Estonian assessment during a daily briefing, telling reporters that the claims lacked any factual basis.
“such statements are unfounded, ill-considered, absolutely not reflecting the reality, not containing any substantiation whatsoever.”
Dmitry Peskov, Kremlin spokesperson, via The Guardian
Peskov added that Moscow cannot and will not take such statements seriously. The formal denial follows a pattern established since the beginning of the full-scale invasion of Ukraine in February 2022, during which Western officials have repeatedly accused Russian intelligence of directing covert operations across European soil.
NATO and European Allies Rally Behind Estonia
Western capitals immediately connected the Tallinn fire to a broader pattern of malign activity across the continent. Security trackers have recorded approximately 200 incidents of suspected Russian sabotage in Europe since 2022, including warehouse arson plots, drone incursions, cyberattacks on critical infrastructure, and the August drone incident at Leipzig/Halle Airport in Germany.

NATO Secretary General Mark Rutte, speaking in Brussels alongside Lithuanian Prime Minister Mindaugas Sinkevičius, condemned the escalation.
“Russia continues its reckless campaign of hostile actions against Nato allies. It is trying to weaken our resolve and stop our support for Ukraine. But Russia is failing. It is failing on the battlefield in Ukraine and it is failing to undermine our unity and support for Ukraine.”
Mark Rutte, NATO Secretary General, via BBC
French President Emmanuel Macron labelled the attack a dangerous escalation that would only lead Moscow into a dead end. Representatives for the European Union reaffirmed that the 27-member bloc would not be put off supporting Ukraine, while leaders from Sweden, the United Kingdom, Latvia, and Lithuania pledged unyielding diplomatic and security solidarity with Tallinn.