North Korean leader Kim Jong Un oversaw hypersonic missile firing drills, state media reported Monday, citing a "grave geopolitical crisis" following U.S. military action in Venezuela.

South Korea's Joint Chiefs of Staff said in a statement it detected several ballistic missile launches from North Korea's capital region around 7:50 a.m. It stated that the missiles flew approximately 560 miles and that South Korean and U.S. authorities were analyzing the details of the launches.

Analysts say Nicolas Maduro’s capture by US is reinforcing Pyongyang’s belief that ballistic missiles and nuclear weapons are essential to deter foreign intervention

Kim Jong Un pledges 'unlimited' nuclear development as North Korea test-fires new cruise missiles designed to carry nuclear warheads in war preparations.

The debut followed the North’s first test of a new surface-to-air missile and the arrival of a U.S. nuclear-powered attack sub for a port call in South Korea.

South Korea’s military reports projectile launch hours before Lee Jae Myung was due to head to Beijing

North Korea's state media released photos Thursday of what it said was the hull of a nuclear submarine. Its leader denounced South Korea's plans to build its own subs as "an offensive act."

North Korea showed Kim Jong-un at a "nuclear submarine" site; analysts: it aims to justify its nuclear push and cast Seoul's sub debate as a threat.

North Korea displayed apparent progress in the construction of a nuclear-powered submarine, with state media photos showing a largely completed hull as leader Kim Jong Un condemned rival South Korea’s

North Korea released new images showing apparent progress on a nuclear-powered submarine as Kim Jong Un criticized South Korea's similar ambitions.