US President Donald Trump announced on Friday that his summit with North Korean leader Kim Jong Un could still happen, a day after he called it off. "Were going to see what happens," Trump told reporters at the White House, after welcoming Pyongyangs latest statement on the talks as "very good news." "It could even be the 12th," he added. The meeting was originally set to be held in Singapore on June 12 before Trump canceled the meeting on Thursday, blaming "tremendous anger and open hostility" from Pyongyang in recent days. But North Korea responded Friday by saying it was willing to talk to the United States "at any time" -- a reaction Trump welcomed as "warm and productive." "Were talking to them now," Trump said of the North Koreans. "They very much want to do it. Wed like to do it." US Defense Secretary Jim Mattis said there was "possibly some good news" on the summit, while White House Press Secretary Sarah Sanders told reporters: "If the meeting takes place on June 12, we will be ready." State Department spokeswoman Heather Nauert cast the fast-moving developments as simply "twists and turns" in the process. "We never expected it to be easy," Nauert told reporters. But the whiplash from the White House was unusual even for the chaos-loving president. In March, apparently acting on impulse, Trump agreed to the talks with Kim after only limited input from aides. In a letter to Kim, Trump blamed Kims regime for his decision to call off the summit, and warned North Korea against committing any "foolish or reckless acts" while also highlighting Americas "massive and powerful" nuclear capabilities. First Vice Foreign Minister Kim Kye Gwan called Trumps decision "unexpected" and "regrettable" but sounded a conciliatory tone, saying officials were willing "to sit face-to-face at any time." Just before Trump announced the cancellation of the meeting, North Korea declared it had "completely" dismantled its nuclear test site in the countrys far northeast, in a carefully choreographed goodwill gesture. The US summit cancellation blindsided treaty ally South Korea, which until now had brokered a remarkable detente between Washington and Pyongyang, with President Moon Jae-in calling the move "shocking and very regrettable." Seoul also would continue efforts to improve ties with the North, Moon’s office said on Friday. North Korea had sharply criticized suggestions by Trump’s national security adviser, John Bolton, and Vice President Mike Pence that it could share the fate of Libya if it did not swiftly surrender its nuclear arsenal. Trump had initially sought to placate North Korea, saying he was not pursuing the “Libya model” and Sanders said he was following “the President Trump model.” US regional allies Japan and South Korea, as well as North Korea’s main ally, China, urged the two countries to salvage the summit on Friday. At an economic forum in St. Petersburg, Chinese Vice President Wang Qishan said it was necessary to ensure security on the Korean peninsula, which touched on China’s core interests. Japanese Prime Minister Shinzo Abe, at the same forum, regretted the cancellation and said the world should keep doing its bit to make the summit happen. Some analysts worried that canceling the summit could prompt a resumption in hostilities, including renewed shorter-range missile tests or stepped-up cyber attacks by Pyongyang and increased sanctions or deployment of new military assets by Washington.