President Donald Trump’s agreement to meet with North Korean leader Kim Jong Un has resulted in much confusion about what would happen next. On Friday that confusion extended to the White House.

The White House press secretary appeared to suggest there would be conditions attached to Mr. Trump’s agreement to meet Mr. Kim, though she didn’t make it clear what those would entail.

“The president will not have the meeting without seeing concrete steps and concrete actions take place by North Korea,” said Sarah Huckabee Sanders, the press secretary, adding that Mr. Trump accepted the invitation to talk “based on the promises that they have made.”

Later Friday, officials clarified that the White House wasn’t suggesting any change in position from Thursday’s announcement.

“The invitation has been extended and accepted, and that stands. We expect the North Koreans to adhere to the assurances they’ve made, and if any of that changes, yes, we’ll have to rethink whether this would happen,” a White House official said.