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.

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 ...

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 severing of several undersea cables in the Baltic Sea in recent months has raised concerns that Russia is using the moves to retaliate against NATO countries that have supported Ukraine.

The Baltic Sea region is on alert and the NATO alliance has boosted its presence after a series of power cable, telecom and gas pipeline outages since Russia invaded Ukraine in 2022. Most have ...

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 ...

Under steel grey skies, the Dutch minehunting vessel Schiedam cuts through the waters dividing Denmark and Sweden, part of NATO's Baltic Sentry mission to protect underwater infrastructure in the ...