Finland's public transport agency said on Wednesday that an oil tanker suspected of damaging undersea cables in the Baltic Sea was found to have serious deficiencies and will not be allowed to operate until repairs have been made.

On Tuesday, January 7, specialists discovered the anchor of the tanker Eagle S at the bottom of the Gulf of Finland. The vessel likely "lost" it during the breakage of several underwater cables, Yle reports.

Finnish police said on Thursday they are investigating whether a foreign ship was involved in the damage of an undersea power cable connecting Finland and Estonia following a sudden outage on Wednesday.

A Finnish court on Friday denied a request for the release of an oil tanker suspected by police of damaging an undersea power line and four telecommunications cables in the Baltic Sea last week. Finland on Dec.

The damaged cable is one of several recent incidents in the Baltic Sea under investigation as possible acts of sabotage.

Finnish authorities have boarded a foreign oil tanker escorted into its waters after disruptions on a subsea power link and several data cables.

Finland's national power grid operator said on Thursday it had asked a Helsinki court to seize the Eagle S oil tanker in a bid to secure the company's claim for damages related to the breakdown of the undersea Estlink 2 electricity interconnector.

The anchor of the Eagle S oil tanker has been recovered from the bed of the Baltic Sea during an inquiry into the ship's possible involvement in sabotage of maritime energy and communication cables. The EU says the tanker belongs to the so-called Russian shadow fleet.

Finnish police said on Tuesday they had recovered a lost anchor from the seabed as part of an investigation of suspected sabotage against power and internet cables in the Baltic Sea.