Donald Trump receives & # 039; very warm & # 039; letter from Kim Jong-un

North Korea leader Kim Jong Un and U.S. President Donald Trump shake hands at the conclusion of their meetings at the Capella resort on Sentosa Island in Singapore.

US President Donald Trump received a "very positive" letter from North Korean leader Kim Jong-un in search of a second meeting, the White House said on Monday, noting that the coordination for the meeting was in March.

"The president received the letter from Kim Jong Un. It was a very warm and very positive letter," said White House spokeswoman Sarah Sanders, adding that the message showed "Pyongyang's continued commitment to focus on denuclearization" on the Korean Peninsula.

"The main purpose of the letter was to schedule another meeting with the president, to which we are open and we are already in the process of coordination," he said at the White House's first press conference in almost three weeks.

Sanders added that the letter was "more evidence of progress" in Washington's relationship with Pyongyang.

Trump and Kim held a landmark summit in Singapore in June that raised the prospects for a breakthrough in the reduction of North Korea's nuclear program.

Despite continuing negotiations on the denuclearization of the peninsula by hitting an obstacle that led the Secretary of State to cancel a planned trip north at the end of last month, the new letter showed signs that the discussions are still alive after weeks of apparent stagnation.

"We think it's important and we're happy that we're making progress," Sanders said, adding that Trump deserves the "credit" for bringing both parties to the table.

"At the end of the day, ultimately, it's always going to be better when you can have the two leaders seated," he added.

The White House has signaled a series of achievements in recent months: the release of American hostages, the repatriation of remnants of war belonging to members of the US service, a pause in nuclear and missile tests in North Korea and a recent parade military Pyongyang that did not show the intercontinental missiles of the country, to suggest progress among the enemies.

Sanders was asked if the next Trump-Kim meeting would take place in Washington, but she refused, saying, "We will let you know when we have more details."