North Korea's regime has "succeeded in making a more developed nuke," according to country's state news agency.
원문출처 : http://www.cnn.com/2017/09/02/asia/north-korea-kim-jong-un-nuke-lab-visit/index.html
원문출처 : http://www.cnn.com/2017/09/02/asia/north-korea-kim-jong-un-nuke-lab-visit/index.html