North Korean leader Kim Jong-un presides over the fifth enlarged plenary meeting of the party's eighth Central Committee in Pyongyang, held from June 8 to 10, in this photo, released by the North's Korean Central News Agency, June 11. Yonhap

North Korean leader Kim Jong-un called for stronger "self-defense" measures to tackle "very serious" security challenges as he presided over a key ruling party session earlier this week, Pyongyang's state media reported Saturday.

But there was no specific message issued from the fifth enlarged plenary meeting of the party's eighth Central Committee with regard to the secretive regime carrying out another nuclear weapon test.

The North stopped short of delivering new major messages on the United States or South Korea through the three-day high-profile session that ended Friday.

It instead announced the promotion of Vice Foreign Minister Choe Son-hui, who used to play a key role in denuclearization talks, to the post of foreign minister.

Foreign Minister Ri Son-gwon has been tapped to lead the party's United Front Department tasked with handling inter-Korean relations.

The North said that the right to self-defense is a matter of protecting national sovereignty, stressing that the security circumstances for the North were "very serious" and at risk of being further aggravated, according to the Korean Central News Agency (KCNA).

He then reaffirmed the principle of "power for power and head-on contest" and urged efforts to accomplish the goal of bolstering national defense capabilities "as soon as possible," the KCNA said.

"And he set forth the militant tasks to be pushed forward by the armed forces of the Republic and the national defense research sector," it added in an English-language report without elaborating.

A decision was made for the principles and strategies to be "maintained in the struggle against the enemy" and in the field of foreign affairs. The "enemy" appears to be referring to South Korea, with the expression used amid heightened tensions on the peninsula in June 2020 when the North unilaterally cut off all inter-communication lines.

The KCNA did not specify whether Kim made a direct mention of a reported plan for another nuclear weapon test.

Meanwhile, the North announced a partial reshuffle of top military officials. Ri Thae-sop was appointed chief of the general staff of the Korean People's Army (KPA) and Jong Kyong-thaek as director of the KPA General Political Bureau, the KCNA said.

During the party session, the North also focused on the issue of controlling the current COVID-19 outbreak.

Kim was quoted as saying that the state anti-epidemic work has currently "entered a new stage" from a blockade-based prevention system to preventing the spread of the virus based on both a lockdown and eradication of the virus. (Yonhap)