Nations on the Baltic Sea, along with NATO, have stepped up security after a third incident of suspected sabotage to underwater infrastructure in a month.

Finnish police have reported finding the anchor responsible for severing an undersea internet cable connecting Finland to Estonia. Last month, Finland detained the Eagle S, an oil tanker transporting Russian oil,

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.

Russia has been blamed for targeting vital infrastructure in the Baltic Sea as part of a hybrid war against the West. Read more at straitstimes.com.

General Mark Rutte says the military alliance will step up patrols in the Baltic Sea area as Finnish investigators work to establish whether a ship linked to Russia sabotaged undersea cables there this week.

The Finnish operator of the cables suspected to have been damaged by a vessel from Russia's shadow fleet on Christmas Day says the cables have now been repaired. A power cable damaged that day is still out of service.

Following suspected sabotage, two telecommunications cables running between Finland and Estonia in the Baltic Sea have been repaired, according to

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.