"I have had a very good relationship with Kim Jong Un. If I weren't president you would be... You would have been in war with Korea. You would have been in war with North Korea if I wasn't president that I can tell you. He expected that. That I can tell you," he said.
"I hope he's fine. I do know how he's doing relatively speaking. We will see You will probably be hearing in the not-too-distant future," Trump, who met Kim at least twice to persuade him to give up his nuclear weapons, said.
Reports cited satellite images to say that a train likely belonging to Kim has been parked at his compound on the country's east coast for a week.