North Korea may be preparing for sixth nuclear weapon test, South Korea says by Melissa Quinn | Aug 28, 2017, 9:46 AM South Korean officials are warning that North Korea may be preparing for a sixth nuclear weapon test, according to a report. During a parliamentary session, Seoul's National Intelligence Service told South Korean lawmakers it picked up signs that North Korea is preparing to conduct another nuclear test at its Punggye-ri underground test site, CNN reported Monday. Pyongyang last held a nuclear test in September, when the rogue regime detonated what it said was a miniaturized nuclear warhead that...