PYONGYANG: North Korea has conducted a "successful" fifth nuclear test, state-run TV said Friday, in an explosion described by the South as Pyongyang's largest-ever such blast.
"Our nuclear scientists staged a nuclear explosion test on a newly developed nuclear warhead at the country's northern nuclear test site," a TV announcer said.
"Our... party sent a congratulatory message to our nuclear scientists... for conducting the successful nuclear warhead explosion test," she said.