N. Korea test-fires upgraded version of 240mm multiple rocket launcher ArirangNews 0 55 08.28 14:12 https://www.youtube.com/watch?v=JvUqrBRJuiI + 6 https://www.youtube.com/feeds/videos.xml?channel_id=UCzznO4xSV8BKnUBPy… + 12 N. Korea test-fires upgraded version of 240mm multiple rocket launcher