German Foreign Minister Annalena Baerbock said ships are damaging undersea cables in the Baltic Sea nearly every month.Florian Gaertner/Photothek/Getty ImagesGermany's foreign minister urged new European Union sanctions on Russia's dark fleet.As part of a probe into a cut cable, Finland said last week it detained a ship that may be from the dark fleet.The case is being investigated as "aggravated criminal mischief," Finnish police said.Germany's foreign minister has called for further sanctions against Russia's dark fleet of oil tankers following damage to an underwater cable linking Finland and Estonia last week."Ships are damaging major undersea cables in the Baltic Sea almost every month," German Foreign Minister Annalena Baerbock told the Funke media group."Crews are leaving anchors in the water, dragging them for kilometers along the seafloor for no apparent reason, and then losing them when pulling them up," Baerbock said, per an AFP translation."It's more than difficult to still believe in coincidences.