Gorae-class

North Korea is making progress on a submarine-launched ballistic missile system but any deployment of the technology is years away, a US think tank said, as the UN Security Council promised action over Pyongyang's latest test.

North Korea is making progress on a submarine-launched ballistic missile system but any deployment of the technology is years away, a US think tank said, as the UN Security Council promised action over Pyongyang's latest test.