North Korea has slammed South Korean President Yoon Suk-yeol for criticizing Pyongyang's possible military cooperation with Russia, calling his remark a "hysteric fit."

Yoon said in a UN General Assembly speech last week that South Korea, "together with its allies and partners, will not stand idly by" while Pyongyang and Moscow seek to boost military ties.

A commentary on the North's state-run Korean Central News Agency on Monday said, "the development of friendship and cooperation among nations is the legitimate right of a sovereign state and the foundation for regional and global peace and stability."

It said that North Korea's "friendly and cooperative relations with the close neighbors will continue to grow stronger" to counter the United States, South Korea and Japan.

The commentary called Yoon incompetent and said no one would listen to him. It also accused him of disturbing the region.