SEOUL, Sept. 15 (UPI) -- North Korea said it has restarted operations at its main nuclear reactor and is ready to use nuclear weapons against the United States at any time.
The state-run Korean Central News Agency reported Tuesday Pyongyang is improving its nuclear weapons arsenal "in quality and quantity." The main nuclear complex, Yongbyon, which includes a uranium-enrichment plant and a plutonium-production reactor, is operating normally, North Korean officials said.