BEIJING, May 1 (Reuters) - U.S. Treasury Secretary Steven Mnuchin said on Wednesday that he had had a "nice" working dinner the night before in Beijing with Chinese Vice Premier Liu He.

"We did. We had a nice working dinner, thank you," Mnuchin told reporters at his Beijing hotel, when asked if he had met with Liu the night before. He did not elaborate.

Mnuchin, along with U.S. Trade Representative Robert Lighthizer, is in China for the latest round of talks aimed at ending their bitter trade war. (Reporting by Tom Daly Writing by Ben Blanchard; Editing by Simon Cameron-Moore)