North Korea tests new weapon bolstering nuclear capability

North Korea has test-fired a new type of tactical guided weapon designed to boost its nuclear fighting capability, state media reported Sunday, a day before its chief rivals the United States and South Korea begin annual military drills that the North views as an invasion rehearsal.

The test, the 13th round of weapons launches by Pyongyang this year, came amid concerns that North Korea may soon conduct a larger provocation like a nuclear test in an effort to expand the country's weapons arsenal and increase pressure on Washington and Seoul amid stalled diplomacy.

The official Korean Central News Agency said leader Kim Jong observed what it called the weapon's successful launch. It released a photo showing a beaming Kim clapping his hands with military officers.

KCNA said the weapon tested has "great significance in drastically improving the firepower of the frontline long-range artillery units, enhancing the efficiency in the operation of (North Korea's) tactical nukes and diversification of their firepower missions."

KCNA didn't elaborate, but the use of the words "tactical nukes" suggested the weapon is likely capable of carrying a battlefield nuclear warhead that could hit strategic targets in South Korea, including U.S. military installations. The KCNA dispatch didn't say when and where the launch occurred.

"North Korea is trying to deploy not only long-range nuclear missiles aimed at American cities but also tactical nuclear weapons to threaten Seoul and U.S. bases in Asia," said Leif-Eric Easley, a professor at Ewha University in Seoul.

"Pyongyang's purposes likely exceed deterrence and regime survival. Like Russia employs the fear it could use tactical nukes, North Korea may want such weapons for political coercion,...