WASHINGTON (Reuters) - New commercial satellite imagery indicates North Korea has resumed operation of a reactor at its main nuclear site used to produce plutonium for its nuclear weapons programme, a ...

VIENNA--Dec 22 (Reuters) - A reactor at North Korea’s Yongbyon nuclear complex appears for the first time to be using atomic fuel, the U.N. nuclear watchdog said late on Thursday, which would mean the ...

WASHINGTON (Reuters) -The U.S. Department of Energy expects to begin announcing by December 31 which companies will take about 19.7 metric tons of surplus Cold War-era plutonium for eventual ...

A person reflects in the window of the U.S. Department of Energy, with the official portrait of U.S. President Donald Trump on the wall, following a partial government shutdown in Washington, D.C., ...

RUSSIA warned of a "catastrophe" if North Korea restarts an outdated plutonium reactor to boost its stockpile of nuclear weapons. The reactor, which was completed in 1986, is outdated and North Korea ...