The reason for closing the Estonian border was sabotage of a military plant.
From December 1, the last 3 checkpoints will be closed - Nerva, Lohama and Koidola. The reason for this was yesterday's attempt to set fire to the project of Threod Systems, which produces drones and related systems. The UAVs of this company are also supplied to Ukraine.
It was reported that the saboteurs went inside, but were unable to cause any damage. 8 Latvian citizens were arrested. Russia's General Directorate of Intelligence (GRU) was definitely accused of this.