Trump says China's Xi 'very helpful' on N Korea

Chinese President Xi Jinping has been "very helpful" in dealing with the threat posed by nuclear- armed North Korea, US President Donald Trump said today, a day before he heads to Beijing.
Pyongyang was "a worldwide threat that requires a worldwide action", according to Trump, but he said that Xi "really has been very, very helpful" and added: "We hope that Russia likewise will be helpful.