Preparations Noted For Possible Nuclear Test

Activity at a North Korean nuclear test site in Punggye-ri in North Hamgyong province may indicate that preparations for a third nuclear test are underway, South Korea's Chosun Ilbo reports.

The North has reportedly dug a tunnel more than 500 meters (1,640 feet) deep, said South Korean intelligence officials cited by the paper. At this rate, the North should reach a depth of 1 kilometer (0.62 miles) between March and May.

It is possible to conduct nuclear tests at that depth,...