North Korea warned this week that it might test a hydrogen bomb in the Pacific Ocean, after saying the country had already ...

SEOUL, South Korea — North Korea says it has conducted a hydrogen bomb test. The surprise announcement that complicates already difficult efforts to curb the country's push for a working nuclear ...

SEOUL, South Korea (AP) — Soon after the ground shook around its nuclear testing facility, North Korea trumpeted its first hydrogen bomb test — a powerful, self-proclaimed “H-bomb of justice” that ...

SEOUL, South Korea (AP) — Soon after the ground shook around its nuclear testing facility, North Korea trumpeted its first hydrogen bomb test — a powerful, self-proclaimed "H-bomb of justice" that ...

In northwest North Korea, Mount Mantap became the center of the country’s nuclear testing program between 2006 and 2017, when six underground detonations were carried out beneath the mountain. The ...

North Korea released a statement early Wednesday asserting that they have successfully tested a hydrogen bomb, “a measure for self-defence the DPRK has taken to firmly protect the sovereignty of the ...