Arson did not disrupt Ukraine deliveries, Estonian military robot maker says

A deliberately set fire at a Tallinn building used by Milrem Robotics did not disrupt its deliveries of military ground robots to Ukraine, CEO Kuldar Väärsi told Reuters on 19 August 2026. Estonian prosecutors said three suspects had been detained in Latvia.
The Milrem arson case fits in a broader pattern of suspected or confirmed sabotage against Ukraine’s military supply chain. Similar attacks throughout Europe have hit plants making drones, thermal optics, and other equipment for the front. Milrem supplies unmanned ground vehicles (UGVs) that help Ukrainian units move supplies and evacuate wounded without putting drawing upon valuable manpower.
The fire broke out overnight on 15 August in Tallinn’s Lasnamäe district after a resident reported suspicious activity. Nobody was injured, and Milrem has not disclosed what was damaged.
Milrem says it is one of only two foreign suppliers with unmanned ground vehicle (UGV) fleets in active Ukrainian service and expects more than 200 of its systems to be operating there by year-end.
The Netherlands is funding more than 150 additional Milrem vehicles for Ukraine. In June, Milrem and VDL Defentec opened a Dutch production line to support the delivery of more than 100 THeMIS UGVs. Väärsi the fire had not affected production, supply chains, or delivery schedules for this year or next.

Unmanned ground vehicles (UGVs) are tracked or wheeled machines with no crew aboard. ArmyInform reported that Ukrainian troops use them to carry ammunition, fuel, and food along exposed routes. A Ukrainian commander identified only as Nazar told ArmyInform that frontline units still rely mainly on UGVs for logistics, although some robots carry explosives.
Three suspects detained as investigators examine possible Russian role
State Prosecutor Gardi Anderson said prosecutors suspect all three detainees of taking part in the arson. Latvian authorities are holding them while the two countries arrange their transfer to Estonia. An Estonian court approved prosecutors’ requests to place two in pretrial detention. A decision on the third remained pending.
Estonian Prime Minister Kristen Michal said investigators were examining whether the fire was the result of sabotage and whether Russia was involved. Authorities have not disclosed the suspects’ alleged motive, whether anyone directed them, or released evidence connecting the attack to Moscow.
Arson has hit other European suppliers to Ukraine
In March, a fire destroyed nearly all of the production capacity at a Czech plant that makes drones and thermal optics for Ukraine. Authorities detained four suspects while investigating possible terrorism and Russian involvement.
Lithuania also charged six people over an attempt to burn a factory supplying radio-wave scanners to Ukraine. Investigators said Russia-based organizers with GRU links coordinated the operation and connected the network to attempted attacks elsewhere in Europe.
Russia has denied Western accusations that it conducts sabotage in Europe.
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Lithuania exposes GRU sabotage network that targeted factories in four NATO countries – Reuters
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Estonia probes Russian link in suspected arson at military robot maker supplying Ukraine

