President Donald Trump says he "absolutely" would invite North Korean leader Kim Jong Un to the White House.

After Kim and Trump signed what Trump called a "pretty comprehensive" document, Trump was asked about a possible invitation. Trump said "absolutely, I would" invite Kim.

Before Tuesday's summit in Singapore, Trump had dangled the prospect of a White House visit for Kim.

Both leaders characterized the document they signed as historic though neither provided details.

The document is set to be handed out to reporters later.

Trump said Tuesday as the leaders wrapped up their historic summit in Singapore that he and Kim "have developed a very special bond" during their day together.

And he says, "Both sides are going to be impressed with the result."

Kim told reporters that "the world will see a major change," though it's unclear how.

The summit marked the first between a sitting U.S. president and a North Korean leader.