WASHINGTON -- The United States and China have reached an agreement — again — to deescalate trade tensions. But details are scarce, and the latest pact leaves major issues between the world's two biggest economies unresolved.

The U.S. and China have agreed on the framework for a trade deal, both nations say. It appears that rare earth minerals are one key part of it.

The statement came after U.S. President Donald Trump said that both sides had signed a trade deal, without providing further details.