North Korea seems ready for its seventh nuclear test, an official of South Korea's presidential office said Friday.Before conducting such a test, Pyongyang may test-fire more missiles of several types, the official added, although the North has carried out missile launches 15 times since January, including the test-firing of three short-range ballistic missiles on Thursday.In April 2018, North Korea declared it would discontinue nuclear tests. But there are signs the country is restoring underground tunnels at its nuclear test site, South Korea's defense ministry has said.Speculation of a p…READ FULL ARTICLE