S. Korea: Earthquake likely the result of N. Korean nuclear test
A South Korean Defense Ministry spokesman says Seoul believes that a nuclear test caused an earthquake in North Korea near the site of two previous atomic tests.
Kim Min-seok says North Korea informed China and the United States of its plans to conduct a nuclear test.
Kim says that shortly before noon Tuesday an earthquake was detected in North Korea.
THIS IS A BREAKING NEWS UPDATE. Check back soon for further information. AP's earlier story is below.