Seoul calls Pyongyang missiles illegal after failed test

South Korea on Monday denounced North Korea for violating the UN Security Council resolutions by launching missiles from submarines, after Pyongyang carried out a failed test over the weekend.

The North Korean Army launched the missile on Saturday in the Sea of Japan without the projectile managing to reach the water surface, EFE news reported.

North Korea is banned from developing or testing any kind of ballistic missile, because of which submarine missile launches are practically a violation of UN resolutions, a spokesperson from Seoul's defence ministry said.

He claimed South Korea and the US are keeping a close eye on North Korea's military movements, following Saturday's revelations about the failed launch.

In May, the North Korean regime carried out its first Submarine-Launched Ballistic Missile (SLBM) launch and Pyongyang media reported Kim Jong-un himself had directed the launch and expressed satisfaction at its success.