North Korean leader Kim Jong-un (in black suit) inspects the Nuclear Weapons Institute and the production base of weapons-grade nuclear materials, in this image provided by the North's official Korean ...

SEOUL, South Korea (AP) North Korea said Friday it is on the threshold of mastering a new way of building atomic bombs, pressuring the United States to agree to direct negotiations or see the ...

North Korea formally withdrew from the NPT in 2003, citing the “hostile policy” of the US after the then president, George W ...

North Korean leader Kim Jong-un (in black suit) inspects the Nuclear Weapons Institute and the production base of weapons-grade nuclear materials, in this file photo provided by the North's ...