The submarine could significantly escalate security concerns on the Korean peninsula and in the Taiwan Strait, experts say ...

North Korea has unveiled for the first time what it says is a nuclear-powered submarine under construction, a weapons system ...

North Korea could be building a nuclear-powered submarine, possibly with Russian help, raising security concerns for the US ...

Kim Jong Un is aiming to increase North Korea's nuclear weapons capability as the U.S. remains cautious about the country's ...

The announcement came amid fears that Pyongyang may be receiving crucial military technology from Russia in return for sending troops and weapons for its war against Ukraine.

North Korea's nuclear-powered submarine, believed to be built with Russian technology, could pose major security concerns to neighbour South Korea and its ally, the US, due to its capabilities ...

North Korea currently has an estimated 70 to 90 submarines, but most are old and can only launch torpedoes and mines, not ...

The UK and France are among five internationally recognised nuclear powers. The UK has "assigned" its nuclear capabilities to ...

Moon, the submarine expert, said North Korea may have received Russian technological assistance to build a nuclear reactor to be used in the submarine in return for supplying conventional weapons ...