Germany and Finland accidental they are "deeply concerned" aft an undersea cablegram linking the countries was severed.
The rupture of the 1,170km (730-mile) telecommunications cablegram - which is being investigated - comes astatine a clip of heightened hostility with Russia.
The 2 countries' overseas ministers said successful a associated statement: "Our European information is not lone nether menace from Russia's warfare of aggression against Ukraine, but besides from hybrid warfare by malicious actors."
Damage to pipelines successful the Baltic Sea has raised fears of sabotage successful caller years.
Separately, a 218km (135-mile) net nexus betwixt Lithuania and Sweden's Gotland Island besides mislaid work connected Sunday morning, a Swedish telecommunications institution said.
In October 2023 a earthy state pipeline betwixt Finland and Estonia was severely damaged. Finnish officials aboriginal said the incidental had been caused by a Chinese instrumentality vessel dragging its anchor.
And German prosecutors are inactive investigating the detonation of Nord Stream state pipelines betwixt Russia and Germany successful 2022.
There person been conspiracy theories astir that attack, with unconfirmed rumours that either the Ukrainian, Russian oregon US authorities was down it.
The latest incidental involves a C-Lion1 fibreoptic cablegram linking the Finnish capital, Helsinki and the German metropolis of Rostock, which stopped moving astir 02:00 GMT connected Monday.
Finnish web relation Cinia said each fibre connections successful it had been cut.
"These kinds of breaks don't hap successful these waters without an extracurricular impact," a Cinia spokesperson told section media.
Samuli Bergstrom, a Finnish authorities cybersecurity expert, said the nonaccomplishment had not affected net postulation betwixt the 2 countries arsenic different cablegram routes were available.