Japan, Britain call for swift response to North Korea

Japan and Britain said on Friday the international community should respond firmly and swiftly after North Korea's announcement that it had successfully tested a hydrogen nuclear device. "We've agreed that North Korea's nuclear test poses grave threats to peace and the safety of international society and that the international community needs to take resolute steps quickly," Japanese Foreign Minister Fumio Kishida said. British Defence Secretary Michael Fallon said: "We will be deepening our bil