|The UN Security Council is to hold an emergency meeting on Monday to discuss an international response. Meanwhile, President Trump has warned that America may stop trading with any country that does business with the North.|
Seismologists' equipment started picking up readings of an earth tremor in the area where North Korea has conducted nuclear tests before. The US Geological Survey put the tremor at 6.3 magnitude. Japanese Foreign Minister Taro Kono said there was no doubt this was North Korea's sixth nuclear test.