N. Korea test-fires upgraded version of 240mm multiple rocket launcher ArirangNews 0 51 08.28 14:12 https://www.youtube.com/watch?v=JvUqrBRJuiI + 4 https://www.youtube.com/feeds/videos.xml?channel_id=UCzznO4xSV8BKnUBPy… + 10 N. Korea test-fires upgraded version of 240mm multiple rocket launcher