Yellen, in her first in-person meeting with Liu, said there was a "pressing need" for the United States and China to communicate on macroeconomic and financial conditions.

"While we have areas of disagreement, and we will convey them directly, we should not allow misunderstandings, particularly those stemming from a lack of communication, to unnecessarily worsen our bilateral economic and financial relationship," Yellen said in remarks prepared for the meeting with Liu.

(Reporting by Andrea Shalal; Editing by Paul Carrel)