North Korean leader Kim Jong Un has overseen the test-firing of two new air defence missiles, state media said Sunday, after Pyongyang accused Seoul of fomenting tensions on the border.Pyongyang state media quoted Army Lieutenant General Ko Jong Chol as saying the incident was a "premeditated and deliberate provocation".

According to the Korean Central News Agency (KCNA), the missiles are upgraded systems with “superior combat capabilities.” While no technical details or launch site were revealed, officials claimed the weapons use “unique and specialized technology” designed to destroy various airborne targets.

Two new air defence missiles with "superior combat capability" have been fired in a test observed by Kim Jong Un.

Since returning to the White House, President Donald Trump has boasted of ending either six or seven wars -- a matter of much dispute -- and has been pushing with mixed success to bring peace to Ukraine.

On his first official visit to Japan since taking office in June, Lee will meet Prime Minister Shigeru Ishiba at the premier's residence in Tokyo to discuss bilateral ties, including closer security cooperation with the United States under a trilateral pact signed by their predecessors.

South Korean President Lee Jae Myung will press Donald Trump to reopen the stalled dialogue with North Korea when he holds his first summit with the US president next week, his top aide said.