August 21, 2019 / 12:18 AM / 2 months ago

Japanese report to say North Korea has miniaturised nuclear warheads - newspaper

TOKYO (Reuters) - Japan has upgraded its estimate of North Korea’s nuclear weapons capability in an upcoming annual Defence White Paper, saying it seems Pyongyang has achieved the miniaturisation of warheads, the Yomiuri newspaper said in an unsourced report on Wednesday.

That compares with the assessment in last year’s report in which the government said it was possible North Korea had achieved miniaturisation, the Japanese daily said without citing sources.

The report, to be approved at a Cabinet meeting in mid-September, will maintain the assessment that North Korea’s military activities pose a “serious and imminent threat”, the Yomiuri said.

North Korea’s ability to build nuclear warheads small enough to fit on its ballistic missiles has been widely accepted for several years, but the Japanese report highlights the lack of progress on denuclearisation talks aimed at curtailing the programme, said Vipin Narang, a nuclear affairs expert at the Massachusetts Institute of Technology in the United States.

“It is Japan that is most threatened, and probably the primary target of such a capability,” he said. “So openly acknowledging it underscores Tokyo’s acute fears that North Korea’s nuclear programme continues to grow unabated with no foreseeable plan to slow its growth, let alone eliminate them.”

South Korea’s 2018 Defence White Paper, released in January, reported that North Korea’s ability to miniaturise nuclear weapons “appears to have reached a considerable level.”

According to South Korean media reports late last year, the South Korean intelligence agency told lawmakers that North Korea had continued to miniaturise nuclear warheads even after the Singapore summit between Trump and Kim in June 2018.

At that time, North Korea committed “to work towards complete denuclearisation of the Korean peninsula” and destroyed some tunnels and buildings at its Punggye-ri nuclear test site.

But a second Trump-Kim meeting in February collapsed without an agreement, and North Korea has since resumed missile tests.

U.S. envoy on North Korea Stephen Biegun was in Seoul this week to meet with South Korean officials, and said he was prepared to engage with North Korea “as soon as we hear from our counterparts.”

American officials have concluded for years that North Korea had likely produced miniaturised nuclear warheads. A leaked report by the Defence Intelligence Agency in 2017 concluded that North Korea had successfully produced a miniaturised nuclear warhead that can fit inside its missiles, according to The Washington Post.

In last year’s Defence White Paper, Japan said “miniaturising a nuclear weapon small enough to be mounted on a ballistic missile requires a considerably high degree of technological capacity,” and that “it is possible that North Korea has achieved the miniaturisation of nuclear weapons and has developed nuclear warheads.”

Reporting by Chris Gallagher and Linda Sieg in Tokyo, and Josh Smith in Seoul. Writing by Malcolm Foster; Editing by Simon Cameron-Moore

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