• Early on May 23, 2024, Estonian border guards noticed that their Russian counterpart had removed 25 of the 50 buoys that Estonia had installed on the Narva River that separates the two countries to prevent boats from accidentally crossing the border.
  • Each year, the placement of the buoys is checked because of naturla changes in the riverbed over time. The neighboring states have largely agreed on their positioning in the past.
  • European Union foreign policy chief Josep Borrell said the incident "is part of a broader pattern of provocative behavior and hybrid actions by Russia."

European Union foreign policy chief Josep Borrell on Friday called the removal of Estonian buoys by Russian border guards on a river separating the Baltic country from Russia "unacceptable," and demanded an explanation from Moscow and the immediate return of the orange floating devices.

Early Thursday, Estonian border guards noticed that their Russian counterpart had removed 25 of the 50 buoys that Estonia had installed on the Narva River to prevent boats from accidentally crossing the border.

Borrell said the incident "is part of a broader pattern of provocative behavior and hybrid actions by Russia."

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Estonia also dubbed it "unacceptable," but said its response "remains calm and clear-eyed."

"We treat this as a provocative border incident," the Foreign Ministry in Tallinn said Thursday.

For decades, Estonia and Russia have installed buoys on the Narva River, with the towns of Narva on the Estonian side and Ivangorod on the Russian bank, largely in mutual agreement.

Men fish near the fortresses of Narva, left, in Estonia, and Ivangorod, right, in Russia, in front of yellow flowers on the Narva River.

Men fish near the fortresses of Narva, left, in Estonia, and Ivangorod, right, in Russia, on May 24, 2023. The EU foreign policy chief Josep Borrell says the removal of 25 Estonian buoys by Russian border guards on a river separating the Baltic country from Russia was "unacceptable." (AP Photo/Jim Heintz, File)

Every year, the marking of the shipping routes was rechecked because "the riverbed changes over time," said Eerik Purgel, the local Estonian Border Guard head. On May 13, the first 50 buoys were installed. However, 25 of them were removed by their Russian counterparts early in the morning 10 days later, he added.

But in 2023, "Russia does not agree with Estonia’s positions regarding the location of the buoys," Purgel said.

"We decided to release the floating marks into the water for the summer season according to a 2022 agreement, because they are necessary to avoid navigational errors, so that our fishermen and other hobbyists do not accidentally wander into Russian waters," he said.

Estonia's Foreign Ministry said the action "fits well within the broader pattern of Russia’s provocative behavior," and drew parallels to the border mapping incidents in the Baltic Sea earlier this week. According to media reports, Moscow could revise the borders of its territorial waters in the region.

The draft proposal was published on an official Russian government website for draft legislation but disappeared hours after it was posted on Wednesday. It wasn’t immediately clear why.

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Russian media said the Defense Ministry in Moscow had suggested updating the coordinates used to measure the strip of territorial waters off its mainland coast and that of its islands in the Baltic Sea. The existing coordinates were approved in 1985, the ministry says, adding that they were "based on small-scale nautical navigation maps" and don’t correspond to the "modern geographical situation."

Kremlin spokesman Dmitry Peskov later said there was "nothing political" in the Defense Ministry’s proposal, and Russian news agencies said Moscow did not intend to revise the border or the width of its territorial waters.

Since Russia’s full-scale invasion of Ukraine in early 2022, Finland and Sweden have joined NATO, meaning that the Baltic Sea — Russia’s maritime point of access to the city of St. Petersburg and its Kaliningrad enclave — is now almost surrounded by members of the military alliance.