(Reuters) - North Korea, pressing ahead with a rocket launch in defiance of a UN resolution, is also preparing a third nuclear weapons test, South Korean news reports said on Sunday, a move bound to scare neighbours and infuriate the West.
South Korea's Yonhap news agency quoted an unidentified intelligence source as saying North Korea was "clandestinely preparing a nuclear test" at the same location as the first two.
The source added that workers in the destitute North had been seen in commercial satellite images digging a tunnel in the northeastern town of Punggye-ri, Kilju County, in addition to existing mines believed to have been used for tests in 2006 and 2009.
"We have confirmed the (mining) work is coming to its final stage," the source was quoted as saying.
The satellite imagery showed piles of earth and sand at the entrance of the tunnel, Yonhap said. Read More