CTBTO looking at 'unusual seismic activity' in North Korea
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Nuclear proliferation watchdog CTBTO is examining unusual seismic activity in North Korea, it said on Saturday.
"Analysts looking at unusual #seismic activity of a much smaller magnitude in the #DPRK," CTBTO Executive Secretary Lassina Zerbo said in a Twitter post, adding more details were set to emerge later.
China's earthquake administration said it had detected a magnitude 3.4 quake in North Korea that was a "suspected explosion", raising fears the isolated state might have conducted another nuclear bomb test.
