US President Trump calls Asian allies to discuss North Korea

President Donald Trump says he's had "a long and very good talk" with the South Korean president, who's just had a historic meeting with North Korea's leader.

With anticipation growing for a possible U.S.-North Korean summit soon, Trump tweets Saturday that "things are going very well, time and location" of meeting with Kim Jong Un are being set.

Trump says that besides talking with South Korea's Moon Jae-in, he's updated Japanese Prime Minister Shinzo Abe about "the ongoing negotiations."

Moon and Kim have pledged to seek a formal end to the Korean War by year's end and to rid the Korean Peninsula of nuclear weapons.

Trump has said he's looking forward to the meeting with Kim and that it "should be quite something." It is tentatively scheduled for May or early June.