Add Yahoo as a preferred source to see more of our stories on Google. Ukraine's internal security agency said it used an underwater drone to damage a Russian submarine. The agency described the attack ...

Add Yahoo as a preferred source to see more of our stories on Google. Footage released by the Security Service of Ukraine shows what it says is a strike on a Russian submarine at a port facility, in ...

Ukraine say they have hit and disabled a $400 million Russian submarine with underwater drones. Footage shows the Varshavyanka docked at Novorossiysk, a port on the Black Sea in southern Russia. There ...

Join Jiggin With Jordan as he teams up with others to build and test underwater submarines. Watch as they evaluate which submarine performs better during their underwater adventures. Explore the ...

Ukraine's internal security agency said it used an underwater drone to damage a Russian submarine. The agency described the attack as a first, potentially signaling a new chapter in drone warfare.