North Korea belligerent, Trumps tells Xi

US President Donald Trump has criticised North Korea's "continued belligerence" and says its actions were destabilising in a telephone call on Sunday with Chinese President Xi Jinping, the White House says.

The leaders agreed on the urgency of the threat posed by the North's missile and nuclear programs and committed to coordinate their efforts to denuclearise the Korean Peninsula, it said in a statement on Monday.

"President Trump criticised North Korea's continued belligerence and emphasised that Pyongyang's actions are destabilising the Korean Peninsula," the White House said.