North Korea tests nuclear device: report
February 12, 2013 09:25
Just in: North Korea appears to have exploded a nuclear device, media reports said.
Seismic activity has been detected in North Korea, the US and South Korea say, in what could be a sign of a widely anticipated nuclear test.
The US Geological Survey said it had detected a tremor with a 4.9 magnitude.
South Korean media also reported a "man-made earthquake" in its northern neighbour.
North Korea said last month it was planning to carry out its third nuclear test despite a promise from the UN Security Council of "consequences".
The USGS said the quake occurred at a depth of 1km. It put the epicentre close to North Korea's nuclear test site.