U.S. to take action on China over Hong Kong this week: Trump

Asked if he was going to impose sanctions on China over its actions in Hong Kong, Trump told reporters at the White House: "We're doing something now. I think you'll find it very interesting. But I won't be talking about it today."

"It's something you're going to be hearing about ... before the end of the week - very powerfully I think," Trump said in response to a second question.