The United States says North Korea could carry out nuclear tests or long-range missile tests, or both, during or after President Joe Biden’s visit to South Korea and Japan this week.

North Korea has reportedly fired a second ballistic missile in recent days after US efforts at the UN to impose further sanctions on Pyongyang.

North Korea tested a "relatively new" intercontinental ballistic missile system in Feb. 26 and March 4 test-firings, according to a senior Biden administration official.

North Korea says it may consider resuming “all temporarily suspended” nuclear and long-range weapons tests to boost its defenses against Washington’s “military threats,” amid growing tensions on the Korean Peninsula and renewed US sanctions against Pyongyang.

France’s President Emmanuel Macron fails to apologize to French Polynesia over devastating nuclear tests carried out in the South Pacific territory.

Top US scientists called on President Donald Trump- Thursday to not resume nuclear weapons tests.

Russia slams "unfounded" US claims about Moscow's violation of a nuclear test ban pact.