President Trump said China agreed to allow rare earth exports to the US, signaling easing trade tensions. Temporary licenses were granted, and both sides plan further talks in London on Monday.

Trump had slapped higher tariffs on China than any other country, but temporarily lowered them last month after initial trade talks in Switzerland.

The two countries have blamed each other for violating a trade agreement reached in Switzerland on May 12.

Trump's call with Xi came as U.S.-China trade relations have frayed following an agreement in Geneva to temporarily pause most of their retaliatory tariffs.