North Korea says leader Kim Jong Un has threatened to use nuclear weapons and destroy South Korea permanently if provoked

South Korea has unveiled its most powerful ballistic missile that could target North Korea. It did so during an Armed Forces Day ceremony on Tuesday as the president warned that North Korea's regime will collapse if it attempts to use nuclear weapons.

North Korea is likely to formalize further Kim Jong Un 's "hostile" stance toward the South next week when its legislature meets to revise the country's constitution, according to a new assessment out of Seoul.