Transcript for Kim Jong Un 'felt badly' about Otto Warmbier, Trump says

You have a personal relationship and I believe vice president pence does with the family of auto warm beer. I'm wondering you've talked about this week's about Kim Jung and being a my friend you called him on Twitter is that you have a great relationship. Have you in Singapore or hear confronted Kim Jong-un about how to warm Beers that I have asked him to take responsibility what do you say to you and why do you. Call him your friend I have and I have and I we I have talked about it and I really don't think it was in his interest in all I know warmed your family very well I think there an incredible family. What happened is horrible. I really believe something very bad happened to him and I don't think that. The top leadership knew about it and when they had to. I sent him home by the way I got the prisoners back I got the hostages back. And Otto was one of the hostages but I don't came back in shape that who is not even to be talked about. I find it. I thought it was horrible now the others came back extremely healthy. But auto came back in any condition that was just. Are just terrible and I well I did speak about it and I don't believe that he would have allowed that to happen just wasn't to his advantage to allow that to happen those prisons are ruff. They're rough places. And bad things happened. But I really don't believe that he was. He he I don't believe he knew about it beauty fate if you tell you that he cannot. It can only tell you felt badly about it at his victim he felt very bad Libby knew the case very well but he knew it later. And got a lot of people a big country lot of people.

This transcript has been automatically generated and may not be 100% accurate.