BEIJING (AP) — North Korean leader Kim Jong Un has reportedly told the leader of his only major ally, China, that he wants to "achieve results" on the nuclear standoff on the Korean Peninsula in a second summit with President Donald Trump.

The comments, contained in reports Thursday from Chinese and North Korean state media, came a day after Kim left Beijing on his special armored train for Pyongyang after a two-day visit to the Chinese capital.

Kim's trip to China — his fourth in the past 10 months — is believed to be an effort to coordinate with Beijing ahead of a possible second summit with...