Unusual seismic activity detected in DPRK

An international nuclear test monitoring agency said on Tuesday that it had detected an "unusual seismic event" in the Democratic People's Republic of Korea (DPRK), following weeks of speculation that a nuclear test was imminent in the country.

"We have detected an unusual seismic event in North Korea," said Annika Thunborg, a spokeswoman for the Comprehensive Nuclear-Test Ban Treaty Organization, an agency set up to monitor compliance with a ban on nuclear tests that has yet to come into effect.

She gave no further details.