President Trump spoke with Chinese President Xi Jinping on Friday about the escalating tension between the U.S. and North Korea over the latter's nuclear weapon program.
The two leaders agreed North Korea "must stop its provocative and escalatory behavior," according to the White House's readout of the call.
North Korea has threatened to strike Guam, which is home to a major U.S. military base, as Trump vowed "fire and fury" against the country.
Chinese state media reported that Xi urged Trump not to do anything that would inflame tensions with North Korea.
The White House said both leaders are committed to the denuclearization of the Korean Peninsula.
"The relationship between the two presidents is an extremely close one, and will hopefully lead to a peaceful resolution of the North Korea problem," the White House said.