The talks with North Korean leader Kim Jong Un could take place in three or four weeks, US President Donald Trump said.

Trump said during a rally in Michigan the United States was not playing games.

"We're down to two countries as to a site, and we'll let you know what that site is," he said earlier at a joint press conference with German Chancellor Angela Merkel at the White House.

Trump has said he will meet Kim in May or early June to discuss the denuclearization of the regime. On Thursday he said there were five locations ― and three or four dates ― under consideration. By Friday morning, he said it was broken down to "two or three" sites.

"I don't think he's playing. It's never gone like this. It's never gone this far," he said during the press conference with Merkel. "I don't think it's ever had this enthusiasm for somebody — for them wanting to make a deal."

According to Trump, the US was "played beautifully like a fiddle" under past administrations as it sent money to the regime in exchange for a freeze of the North Korean nuclear weapons program.