By Ben Westcott, James Griffiths, Meg Wagner and Veronica Rocha, CNN
From CNN's James Griffiths
President Trump said he had a "really productive time" during discussions with North Korean leader Kim.
But he added it "wasn't a thing to be signing anything" today.
"He's quite a guy, quite a character," Trump said of Kim. "We had some options but at this time we decided not to do any of the options."
"Sometimes you have to walk," the President added. "This was just one of those times."
Watch below: Trump, Pompeo discuss why the summit ended
From CNN's James Griffiths
President Trump is speaking at a news conference following the abrupt end of his summit with North Korean leader Kim Jong Un.
He opened his remarks by discussing the situation with India and Pakistan.
From CNN's Yoonjung Seo in Hanoi
Ahead of President Trump addressing the press after his meetings with North Korean leader Kim ended without agreement, a South Korean government official told CNN “we’re as perplexed as the world now.”
“The whole world was waiting for an agreement and so were we,” the official added.
The South Korean stock market fell on the news of the summit’s early end, closing down 1.8%.
President Trump will hold a news conference soon after his talks with North Korean leader Kim Jong Un were cut short.
The White House said Trump and Kim could not reach an agreement during their extensive talks Thursday.
"No agreement was reached at this time, but their respective teams look forward to meeting in the future," press secretary Sarah Sanders said in a statement.
Follow us here for the latest or watch the conference live in the video player at the top of the page.
From CNN's Josh Berlinger in Hanoi
Former State Department spokesman and CNN analyst John Kirby said the “talks had to have broken down at some point,” adding it was likely “to do with the very large gap of expectations on both sides.”
“On one hand, that’s disappointing obviously because it would behoove everybody to move forward with some sort of framework for negotiations,” he said. “That said, I’m not inclined to fault the President for being willing to walk away -- there is some strength in that.”
He added that “many people were expecting him to just give away the farm going into this summit. That he didn’t do that and was willing to walk away shows how big the gap was, but it also tells you he was not willing to deal for the sake of dealing, and that’s encouraging.”
From CNN's Kevin Liptak in Hanoi
The White House says no joint agreement was reached between President Trump and North Korean leader Kim Jong Un at their closely watched second summit.
“No agreement was reached at this time, but their respective teams look forward to meeting in the future,” press secretary Sarah Sanders wrote in a statement.
Sanders added: “President Donald J. Trump of the United States and Chairman Kim Jong Un of the State Affairs Commission of the Democratic People’s Republic of Korea had very good and constructive meetings in Hanoi, Vietnam, on February 27-28, 2019."
"The two leaders discussed various ways to advance denuclearization and economic driven concepts," she said.
Watch more:
From CNN's James Griffiths
After their planned working lunch was called off, amid speculation a signing ceremony may not be taking place today either, the motorcades for both President Trump and North Korean leader Kim are now en route back to their hotels.
South Korean stocks continued to fall after the apparent change in summit schedule between the two leaders.
From CNN's James Griffiths
A planned working lunch between President Trump and North Korean leader Kim appears to have been canceled, as potentially has a joint signing ceremony.
After preliminary negotiations between Trump and Kim went over time, White House press secretary Sarah Sanders told reporters waiting to cover the lunch that it had been called off.
Negotiations would be wrapping up in the next 30 minutes, she said, after which Trump will return to his hotel for a press conference at 2 p.m. local time (2 a.m. ET).
She declined to comment when asked several times about the signing ceremony, which was originally scheduled for 2 p.m.
South Korea’s stock market dipped suddenly after the news of potential difficulties at the summit, but it quickly recovered some of its losses.
From CNN's Joshua Berlinger in Hanoi
Nguyen Thi Lien owns the famous noodle restaurant where former US President Barack Obama and CNN's Anthony Bourdain enjoyed a meal in 2016.
She said she's not very political but would be very happy to host President Trump and Kim Jong Un for a meal if they chose to stop by.
In fact, she said they could eat there for free.
