North Korea Made 'Serious Increase' in Nuclear Weapons, IAEA Says

North Korea has significantly increased its capacity to produce nuclear weapons, and has intensified activity across key facilities, according to Rafael Grossi, head of the International Atomic Energy Agency.

The agency has observed “a very serious increase” in North Korea’s nuclear output capability, Grossi told reporters in Seoul Wednesday, pointing to a rapid rise in operations at the country’s Yongbyon complex and other sites.