Finland’s deputy prosecutor general’s office said on Monday it had filed charges of aggravated sabotage and aggravated interference with telecommunications against the captain and first and second officers of the Eagle S. The Cook Islands-registered tanker is understood to be part of Russia’s “shadow fleet” – comprising vessels that sail under foreign flags to evade sanctions.

The ship was carrying oil from Ust-Luga in Russia across the Gulf of Finland when, prosecutors allege, it dragged its anchor along the seabed for about 90km (56 miles) in December 2024.