In a black fur hat and clutching binoculars, North Korean leader Kim Jong Un oversaw his latest firing drill, a move Seoul said Tuesday aimed at drawing the attention of the US and South Korea.

Kim "guided another firepower strike drill of long-range artillery", the North's KCNA news agency reported, a day after Japan said Pyongyang had fired what appeared to be ballistic missiles.

The North has been continuing to refine its weapons capabilities, analysts say, more than a year after a Hanoi summit between Kim and US President Donald Trump broke down.

Images carried by official Rodong Sinmun newspaper showed rockets blasting out of multiple launchers each with four firing tubes, striking what appeared to be an island target.

Other pictures showed smaller-calibre projectiles and artillery shooting salvos of rounds.

Kim, wearing a Russian-style hat and a khaki military jacket, watched from a trench next to an officer in a black facemask.

Pyongyang has closed its borders and imposed strict conditions as it seeks to avoid the worldwide coronavirus outbreak.

The three joint firing drills Kim has supervised in the last fortnight were his first military-related activity this year, Seoul's unification ministry said Tuesday.

"It is for strengthening internal solidarity and externally, attracting the attention of the US and South Korea and pressuring their change in attitude," it added in a statement.

North Korea is under multiple sets of United Nations, US and other sanctions over its weapons programmes.

Washington and Pyongyang talks have been deadlocked since Hanoi over sanctions relief and what North Korea would be willing to give up in return, and a high-profile meeting between Trump and Kim failed to break the logjam.

Pyongyang set Washington a unilateral end-2019 deadline to offer fresh concessions, and in late December Kim declared the North no longer considered itself bound by its moratoriums on nuclear and intercontinental ballistic missile tests.

He also threatened a demonstration of a "new strategic weapon" soon.

The North carried out a series of weapons tests late last year, the last of them in November, which it often described as multiple launch rocket systems although others called them ballistic missiles.

It also conducted static engine tests, most recently in December.

N. Korea's Kim oversees new 'long-range artillery' drill: KCNA
Seoul (AFP) March 9, 2020 –

North Korean leader Kim Jong Un has overseen another "long-range artillery" drill, state media reported on Tuesday, a day after Japan said the nuclear-armed country had fired what appeared to be ballistic missiles.

It was the second-such "drill" in a week and comes as a prolonged hiatus in disarmament talks with the United States drags on.

Kim "guided another firepower strike drill of long-range artillery" and "highly appreciated the perfect combat readiness" of the forces, KCNA said.

The North has been continuing to refine its weapons capabilities, analysts say, more than a year after a summit between Kim and US President Donald Trump broke down in Hanoi.

Pyongyang is under multiple sets of United Nations, US and other sanctions over its weapons programmes.

The North "appeared to have carried out joint firing drills involving various types of multiple rocket launchers", South Korea's Joint Chiefs of Staff said on Monday, expressing "strong regret" over Pyongyang's actions.

The military leadership in Seoul initially said three projectiles were involved, before changing the description to "multiple".

The devices were fired northeast into the sea from South Hamgyong province and flew 200 kilometres (124 miles) at a maximum altitude of 50 kilometres, the Joint Chiefs said.

That was slightly shorter but also slightly higher than last Monday's firing of what the South's military described as two short-range ballistic missiles.

A US State Department spokesperson called on North Korea to "avoid provocations" and abide by UN Security Council resolutions.

Pyongyang should "return to sustained and substantive negotiations to do its part to achieve complete denuclearisation," the spokesperson said.

The State Department did not offer details on the latest launches but a Japanese defence ministry spokesman said North Korea had appeared to fire "ballistic missile(s)" — which it is banned from doing under Security Council resolutions.

– 'Serious issue' –

Japanese Prime Minister Shinzo Abe told parliament: "Repeated launches of items such as ballistic missiles have been a serious issue for the international community, including our country."

In an emergency meeting, South Korea's security ministers said the North's continued firing drills were "not helpful" to efforts for lasting peace on the Korean peninsula.

After last week's launch, KCNA also said Kim had overseen a "long-range artillery" drill. It carried images of multiple launch rocket systems and several of a larger calibre rocket being fired in a forest.

Monday's firing came days after Kim sent a personal letter to the South's President Moon Jae-in, offering "comfort" for the rapid outbreak of new coronavirus in the country.

South Korea has one of the world's largest infection totals outside China with more than 7,400 cases, while Pyongyang insists it has not had a single one.

That message had followed an unprecedented statement by Kim's younger sister Yo Jong, berating Seoul's "truly senseless" and "perfectly foolish" condemnation of Pyongyang's weapons test last week.

The North carried out a series of weapons trials late last year, the last of them in November, which it often described as multiple launch rocket systems although others called them ballistic missiles.

It also conducted static engine tests, most recently in December.

Pyongyang set Washington a unilateral deadline of the end of 2019 to offer fresh concessions on sanctions relief, and at a party meeting in late December Kim declared the North no longer considered itself bound by its moratoriums on nuclear and intercontinental ballistic missile tests.

He also threatened a demonstration of a "new strategic weapon" soon.

Heightened tensions in 2017 were followed by two years of nuclear diplomacy between Pyongyang and Washington, including three meetings between Kim and Trump, but little tangible progress was made.