SEOUL – An unusually candid North Korea has said the botched launch of a military satellite in May was the “gravest failure” but it vowed that it would soon succeed in its quest, the state media reported on Monday.

North Korea’s ruling party made the assessment of its May 31 launch at a three-day meeting that ended on Sunday, ordering workers and researchers to analyse the mission that ended with the rocket and its spy satellite payload plunging into the sea, and to prepare for another launch soon.

Officials “who irresponsibly conducted preparations” for the failed launch were “bitterly criticised” at the meeting, the KCNA state news agency reported.

The rocket failed “after losing thrust due to the abnormal starting of the second-stage engine”, North Korea said at the time.

Nuclear-armed North Korea had earlier said it would launch its first military reconnaissance satellite to boost monitoring of US military activities, another step in a military programme that has raised fears of war.

South Korea’s navy last week recovered a large, cylindrical part of the rocket, raising it from the sea off the west coast, which experts said could provide clues to the North’s rocket development.

The North’s state media said the ruling Workers’ Party Central Committee also discussed bolstering nuclear capabilities and stepping up production of nuclear weapons.

Leader Kim Jong Un attended the meeting, KCNA said, but it made no mention of whether he made a speech or delivered a report, as he usually does at such important policymaking sessions.

A spokesman for South Korea’s Unification Ministry, which handles relations with the North, said the absence of a report of a speech by Mr Kim was “extremely rare”.

That and the blaming of low-ranking officials for the failure of the launch could indicate a loss of confidence, the ministry said.

The party also discussed ensuring sufficient food supplies.

South Korea recently said the food situation in the North, which has in the past suffered famines, “seemed to have deteriorated”.

Isolated North Korea is under international sanctions over its nuclear weapon and ballistic missile programmes, and its economy was further strained by self-imposed border lockdowns aimed at stopping Covid-19.

Separately, KCNA reported that Mr Kim Yong Chol, a top official who was believed to have been sidelined after a 2019 summit with the US ended in failure, had been named as an alternate member of the Political Bureau of the Party Central Committee. REUTERS