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

Authorities did not find any evidence that a Chinese-flagged ship in the Baltic Sea intentionally damaged two undersea cables last year, according to a Swedish report released Tuesday.

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 ...

"Słupcio" — or "little guy from Słupsk" in Polish — is the name given to the amber bear in 2013, when a Polish kindergartner ...

Eutrophication and oxygen depletion are well-known threats to the ecological balance of the Baltic Sea, which is increasingly ...

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

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

Discarded explosives were dumped into the Baltic and North seas after World War II. Their deadly legacy is still with us.

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

Atlantic salmon exposed to anti-anxiety medication during their migration were more successful in reaching their destination ...