Leader Kim Jong Un pledged to pursue "sustained countermeasures," citing security ties between the U.S. and its regional allies.

SEOUL--Tens of thousands of North Koreans and people in South Korea, Japan and China could be exposed to radioactive materials spread through groundwater from an underground nuclear test site ...

North Korean state media on Wednesday denounced U.S. President Donald Trump's proposal to take over Gaza and relocate Palestinians as bluster and accused Washington of robbery. North Korea ...

North Korea continues its work to develop nuclear weapons and to test intercontinental ballistic weapons that threaten countries in its region. North and South Korea separated in 1948 and followed ...

The Center for Strategic and International Studies (CSIS) conducted a 1.5 day-long U.S.-China ... and included injects that suggested factional differences in North Korea and unsecure ...

They say North Korea likely received Russian promises to provide it with high-tech weapons technology associated with its nuclear and missile ... and warfare and test their combat capabilities.

The nuclear-powered USS Alexandria is a 360-foot fast-attack submarine equipped with Tomahawk missiles and MK48 torpedoes.

North Korean leader Kim Jong Un has said an elevated U.S. security partnership with South Korea and Japan poses a grave ...

North Korea's defence ministry said on Tuesday the United States is again posing a grave security threat by sending a nuclear submarine to a South Korean port and its military forces are ready to take ...

North Korea said on Saturday its nuclear weapons are not meant for negotiations but are intended for combat use against enemies that threaten its people and world peace, its state media reported.