Experts say North Korea's first destroyer, named Choe Hyon, was likely built with Russian assistance. View on euronews

SEOUL, South Korea (AP) — North Korea said Wednesday leader Kim Jong Un observed the test-firings of missiles from a recently launched destroyer — the first such warship for the North — and called for accelerating efforts to boost his navy’s nuclear attack capabilities.

North Korean officials blamed increased tensions with the U.S. and cooperative military drills with South Korea and Japan as reasons for the testing.