Finnish investigators probing the damage to a Baltic Sea power cable and several data cables said they found an anchor drag mark on the seabed, apparently from a Russia-linked vessel that has already been seized.

Finnish police said on Sunday they had found tracks that drag on for dozens of kilometres along the bottom of the Baltic Sea where a tanker carrying Russian oil is suspected of breaking a power line and four telecoms cables with its anchor.

Finnish investigators probing the damage to a Baltic Sea power cable and several data cables said they found an anchor drag mark on the seabed, apparently from a Russia-linked vessel

Finnish authorities discovered anchor drag marks on the seabed just a day after it moved the Eagle S to a safer anchorage to help further its investigation.

Finnish police reported on Tuesday that seven crew members of the ship Eagle S, suspected of severing an underwater power cable in the Baltic Sea, are under investigation and prohibited from leaving Finland.