Estonia will close all land border crossings with Russia on Dec. 1 following clear evidence that Russian military intelligence ordered a sabotage attack against a domestic defense company, according to iDNES.cz.
Margus Tsahkna announced the decision on the social media platform X, stating that the closure aims to reduce Moscow’s ability to conduct hostile activities within Estonian territory, as reported by NOVA. Tsahkna confirmed that he informed his counterparts in Finland, Latvia, and Lithuania about the border shutdown.
Following clear evidence that Russia’s military intelligence service GRU, ordered a sabotage attack against an Estonian defence industry company, Estonia will close all Estonian-Russian border crossing points as of 1 December. Russia must understand that hostile actions against…
“Russia must understand that hostile actions against Estonia come with consequences,” Tsahkna wrote, as cited by Echo24. “Attempts to intimidate, destabilize, or undermine our security will not go unanswered.”
“Russia must realize that hostile actions directed against Estonia carry consequences,” Tsahkna said, according to Seznam Zprávy. “Closing the border crossings will limit Russia’s ability to carry out hostile activities in Estonia and strengthen our efforts to prevent sanctions circumvention.”
Estonia’s Internal Security Service has confirmed that the failed arson attack against Estonian defence industry company Threod Systems on 14 November was ordered by the Russian military intelligence agency GRU. This is yet another example of Russia using sabotage and coercion… https://t.co/VTnxTWFNx6
Margus Tsahkna said on X, “I have informed my Finnish, Latvian, and Lithuanian counterparts of this decision.”
Sabotage Plot Targets Drone Manufacturer
The internal security service confirmed that the Russian Main Intelligence Directorate, known as the GRU, directed an unsuccessful arson attack over the weekend against Threod Systems, an Estonian drone manufacturer. Estonian authorities and police detained eight suspects in connection with the incident during operations overnight into Sunday, according to reports from Reuters cited by Novinky.
State Prosecutor General Astrid Asiová said that prosecutors submitted a court request to arrest five of the suspects, all of whom are residents of neighboring Latvia.
Prime Minister Kristen Michal described the incident as part of a broader hybrid campaign by Moscow designed to weaken European support for Ukraine, according to NOVA. This attempt follows a previous arson attack in August against Milrem Robotics, a firm supplying unmanned ground vehicles to Ukraine, which led Estonian authorities to formally blame Russian intelligence services in September.

Estonia Maintains Three Open Crossings with Russia
Estonia currently maintains three open crossings with Russia: Narva in the north, along with Luhamaa and Koidula in the south, according to the Estonian public broadcaster ERR cited by Seznam Zprávy.
Moscow has not yet issued a direct response to the Estonian accusations or the border closure announcement, though Russian authorities have repeatedly denied involvement in similar European sabotage operations, according to Novinky.
Along with other Baltic states, as well as Scandinavian countries and Poland, Estonia is among the leading supporters and donors of weapons to Ukraine, which has been defending itself for almost five years against the open Russian invasion unleashed on Putin’s orders.
Border Closure Questions
Why is Estonia closing its border with Russia?
The government ordered the closure after its internal security service confirmed that the Russian GRU directed a weekend arson attack against Estonian drone manufacturer Threod Systems.
When do the border restrictions take effect?
All remaining estonian-Russian border crossings will close on Dec. 1.
Who was detained by police?
Authorities arrested eight Latvian residents in connection with the sabotage attempt, and prosecutors have sought arrest warrants for five of them.
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