Sweden's submarines are small and quiet, perfect for the Baltic Sea that many NATO allies share with Russia.

The hope is that this pilot project will serve as a blueprint for future large-scale efforts, proving the systematic ...

Swedish report finds no evidence a Chinese-flagged ship intentionally damaged Baltic Sea cables - Authorities haven't found ...

The Estonian navy detained and boarded a Russia-bound oil tanker on an EU sanctions list on Friday, accusing it of sailing ...

Researchers have successfully revived algae that remained dormant underneath sediment at the bottom of the Baltic Sea for ...

A Swedish probe found no conclusive evidence to suggest that a Chinese ship had deliberately dragged its anchor to damage two Baltic Sea cables, Sweden's Accident Investigation Authority said on ...

NBC News joined a NATO flotilla as it sailed the icy sea hunting Russian saboteurs accused of targeting undersea cables.

The revived organisms resumed their biological activities as if they hadn't been without oxygen and light for thousands of years.

Suspicious Russian tankers keep slashing Europe’s internet and power cables. It’s not an act of war … but someday it might be ...

Moscow’s latest disruptive measures against Europe involve targeting cables traversing the Baltic Sea. The EU needs to ...