French President Emmanuel Macron has accused Russia of engaging in an increasingly aggressive campaign across Europe after Estonia alleged that Russian security services were behind an arson attack on a defence company supplying equipment to Ukraine.
Speaking on Tuesday, Macron described the incident as a “dangerous escalation”, arguing that a series of hostile actions attributed to Moscow risks further destabilising European security. He said Russia’s actions would not weaken European support for Ukraine and instead would strengthen the resolve of countries backing Kyiv.
“The multiplication of these hostile acts represents a dangerous escalation by Russia,” Macron said, warning that such activities would only deepen Moscow’s isolation. He also referred to a recent incident in Germany in which an explosive-laden drone was reportedly discovered near an airport, citing it as part of a broader pattern of security concerns across Europe.
The controversy stems from an investigation by Estonia into an August fire at Milrem Robotics, an Estonian defence technology company known for producing unmanned ground vehicles used by several NATO members and supplied to Ukraine. Estonian authorities claim they have concluded that Russian intelligence services were responsible for commissioning the attack.
Estonian Prime Minister Kristen Michal said the conclusion was based on findings from the country’s Internal Security Service, known as KAPO. According to Michal, the alleged operation formed part of a wider effort to intimidate European nations and weaken support for Ukraine.
“The arson attack against Milrem Robotics was ordered by Russian special services,” Michal said. He added that Estonia would respond with stronger domestic security measures, continued support for Ukraine and greater pressure on Moscow.
Russia has not publicly accepted responsibility for the allegations and has frequently rejected similar accusations made by Western governments.
The dispute comes amid heightened tensions between Russia and NATO members as the war in Ukraine continues. Security agencies across Europe have increasingly warned of sabotage, cyberattacks and covert operations targeting infrastructure, defence industries and transport networks linked to support for Kyiv.
Analysts say the latest accusations are likely to intensify calls within Europe for stronger security coordination and enhanced protection of strategic defence assets.