US President Donald Trump says he has received a what he called a "beautiful letter" from North Korean leader Kim Jong Un. He added that they could have another meeting, but did not say when that might happen.
The president told reporters at the White House on Friday that the three-page letter arrived the previous day. He also described the letter as "very positive."
Trump played down recent missile test-launches by North Korea, saying they were all short-range types.
He said Kim was not happy with the ongoing joint war games between the United States and South Korea.
Trump and Kim had their third meeting in June at the demilitarized zone separating the two Koreas, and agreed to resume denuclearization talks as early as mid-July. However, no progress has been made since then.
Trump also referred to relations between Japan and South Korea. He said he is concerned that the two countries are not getting along with each other.
He said the disagreements between the two nations, as US allies, puts his administration in a very difficult position.
Trump added that the two countries must get along with each other.