Swedish police officers are probing a suspected sabotage incident on the island of Gotland in the Baltic Sea—which is ...

"We take all reports of possible damage to infrastructure in the Baltic Sea very seriously," Sweden's prime minister said.

NATO must properly secure the Baltic Sea — the so-called NATO lake. The Baltic states achieved independence from the post-Soviet energy system in February by connecting to the continental grid ...

Citing unnamed U.S. officials, Bloomberg reported that Moscow and Washington were discussing economic cooperation in the far ...

The alliance wants to ensure that it can monitor ship traffic near sea floor cables and other maritime infrastructure.

The difficulties are frustrating Western officials trying to combat what they say is a hybrid war by Russia against infrastructure in the West.

NATO hastily pulled together the patrol mission last month after several electricity and telecommunications cables were severed on the Baltic Sea floor in recent months. Those incidents came amid ...

In December, NATO announced that it would boost patrols in the Baltic Sea after several reported incidents of underwater sabotage. Cocaine has been found in the ocean and along coastlines many ...

A contingent of U.S. Marines has deployed to coastal Finland to assist a NATO operation aimed at tracking down potential ...

On the bridge of the Estonian warship Sakala, a crew member out on patrol moves a camera, zooming in on a Panama-flagged oil tanker 300 metres away in the Gulf of Finland. The tanker, which ...

The Baltic Sea is sometimes called the "NATO lake," following the accession of Finland and Sweden into the military alliance. With all coastal nations—except Russia—now NATO members ...

(U.S. Navy) MILAN — NATO showed off its underwater surveillance capabilities in an unmanned surface vessel demonstration in the Baltic Sea as part of alliance efforts to deter acts of sabotage ...