The U.S. and China ended high-stakes trade talks on a positive note on Sunday, with U.S. officials touting a "deal" to reduce the U.S. trade deficit, while Chinese officials said the sides had reached "important consensus" and agreed to launch another new economic dialogue forum.

The White House has issued a statement saying the U.S. announced a China trade deal after the conclusion of talks between the U.S. and Chinese delegations in Switzerland on Sunday. But it wasn't immediately clear whether a deal had actually materialized.