SEOUL, South Korea — North Korea said Monday that leader Kim Jong Un observed test-flights of hypersonic missiles and underscored the need to bolster the country’s nuclear war deterrent, as the ...

North Korean leader Kim Jong Un supervised additional missile tests during the weekend. The tests are part of an effort to amplify the North Korea navy’s operational abilities and nuclear-weapon ...

North Korean dictator Kim Jong Un oversaw a test of a new high-thrust solid-fuel rocket engine, according to state media, working on weapons capable of striking the U.S. mainland. The test, reported ...

North Korean leader Kim Jong Un observed a test of an upgraded solid-fuel engine for weapons capable of reaching the U.S. mainland, and called it a significant development boosting his country's ...

SEOUL, South Korea — North Korea said Monday it test-launched ballistic missiles with cluster bomb warheads in the second such test this month, likely underscoring its push to expand its capabilities ...