AP: President Donald Trump and North Korean leader Kim Jong Un have signed what Trump says is a “very important” and “pretty comprehensive” document.

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.

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.

Both leaders characterized the document they signed as historic though neither provided details. Trump said the details would come later.