North Korea releases images of uranium enrichment facility for first time

North Korea released images of its uranium enrichment facility for the first time on Friday, showing leader Kim Jong Un touring it as he called for more centrifuges to boost his nuclear arsenal.

The country, which conducted its first nuclear test in 2006 and is under rafts of UN sanctions for its banned weapons programs, has never publicly disclosed details of its uranium enrichment facility.

Such facilities produce highly enriched uranium -- which is needed to produce nuclear warheads -- by spinning the material in centrifuges at high speeds.

Kim toured the Nuclear Weapons Institute and the "production base of weapon-grade nuclear materials," the official Korean Central News Agency reported, without giving the location of the facility or the date of the visit.

Kim "stressed the need to further augment the number of centrifuges in order to exponentially increase the nuclear weapons for self-defence," state media reported, publishing images of Kim inspecting rows of centrifuges.

The North Korean leader urged the facility to "push forward the introduction of a new-type centrifuge... so as to further strengthen the foundation for producing weapon-grade nuclear materials".

Kim also "stressed the need to set a higher long-term goal in producing nuclear materials necessary", added KCNA.

North Korea's nuclear weapons programs are banned by UN sanctions, but the country has long flouted the restrictions, thanks in part to support from allies Russia and China.

South Korea slammed the North over the uranium enrichment facility and its aims to boost production of materials for tactical nuclear weapons.

It "is a clear violation of a number of UN Security Council resolutions," a spokesperson for Seoul's unification ministry said.

- Message for US? -

Experts said the sudden public disclosure of the North's uranium enrichment facility could be intended to impact the US presidential election in November.

The images are "a message to the next administration that it will be impossible to denuclearize North Korea", Hong Min, a senior analyst at the Korea Institute for National Unification, told AFP.

"It is also a message demanding other countries to acknowledge North Korea as a nuclear state," he added.

North Korea is believed to operate multiple uranium enrichment facilities, Seoul's spy agency has said, including one at its Yongbyon nuclear site, which Pyongyang purportedly decommissioned after talks -- although it later reactivated the facility in 2021.

According to Hong, the facility unveiled Friday is "highly likely to be the Kangson site" -- another top secret nuclear complex near Pyongyang.

It is unlikely that the disclosure will be quickly followed by another nuclear test, Hong said.

Pyongyang last month said record rain in late July had killed an unspecified number of people, flooded dwellings and submerged swathes of farmland in its northern regions near China.

38 North, a North Korean analysis program run by the Stimson Centre think-tank, reported on Wednesday that North Korea's main nuclear test site had been damaged by floodwaters.

North Korea's main nuclear test site "is in very bad condition. All roads and railways have been lost due to rain damage, and the ground is very weakened," Hong added.

Relations between North and South Korea are at one of their lowest points in years, with the North recently announcing the deployment of 250 ballistic missile launchers to its southern border.

The North has also been bombarding the South with trash-carrying balloons, including a five-day straight blitz last week.

On Thursday, Seoul said the North had fired multiple short-range ballistic missiles into waters east of the Korean peninsula.

But KCNA said in a separate dispatch Friday that this had been a test of a "new-type 600mm multiple rocket launcher" which was overseen by Kim.