As of December 1, Estonia closes all border crossings with Russia.
The words were published on the X (X) social network by the country's foreign minister, Margos Tsakhana.
On November 14, a failed sabotage attempt was made in Estonia at the defense factory Threod Systems, which produces drones.
The Estonian government claimed that Russian military intelligence was behind the sabotage attempt.
"Russia must understand that hostile actions against Estonia will not go without consequences. Attempts to intimidate us, destabilize or harm our security will not go unanswered," the minister wrote.
The authorities in Finland, Latvia and Lithuania have already been informed of this decision.