North Korea says it fired long-range strategic cruise missiles into the sea to test the country’s nuclear deterrence.

New photos show North Korea's apparent progress in the development of a nuclear-powered submarine as Kim Jong Un condemns South Korea's efforts.

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."

The official Korean Central News Agency said North Korean leader Kim Jong Un visited a shipyard to inspect the construction of what the North describes as an 8,700-ton-class nuclear-propelled submarine.

Pyongyang will likely open room for a summit meeting with Washington while excluding dialogue opportunities with Seoul.

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

In recent years, Pyongyang has tested a range of increasingly advanced weapons, including solid-fueled missiles, highly maneuverable hypersonic reentry vehicles, nuclear-capable warheads, and intercontinental ballistic missiles with extended range.

North Korean leader Kim Jong-un hailed troops fighting in an “alien land” in a New Year message to soldiers, state media reported Thursday, in which