Donald Trump has hit back after North Korea’s leader called him “deranged”.<br /><br />Kim Jong-un had said the US president would “pay dearly” following new sanctions on his country and a UN speech where he threatened to “totally destroy” the north. <br /><br />But responding in an early morning tweetstorm, Trump branded his North Korean rival a madman promising to test him “like never before” <br /><br />Earlier Kim insisted Trump’s remarks had convinced him to continue with the North’s weapons programme. <br /><br />He also threatened to retaliate at the “highest level”<br /><br />The extraordinary exchange of insults prompted calls for calm from both Russia and China, with Beijing saying the situation is “complicated and sensitive”<br /><br />North Korea’s foreign minster has suggested Pyongyang could soon test a powerful nuclear weapon in the Pacific. <br /><br />On Wednesday President Trump signed an executive order aimed at choking off North Korea’s economy in bid to halt the secretive state’s atomic ambitions.<br />
