WASHINGTON, May 17 (Reuters) - The United States expects a "double digit increase" in purchases of agricultural products by China following last week's meeting between U.S. President Donald Trump and Chinese President Xi Jinping, U.S. Trade Representative Jamieson Greer said on Sunday.

"What we expect with the new purchase agreements...double-digit purchases of aggregate agricultural products. When I say aggregate, I mean everything else that could be soybeans, that could be beef, that could be grains, that could be dairy products, all kinds of things," Greer told CBS' "Face the Nation" program, adding that further details of the agreements would be released soon.