(CNN) US President Donald Trump said another summit with North Korean leader Kim Jong Un would "most likely" happen but offered no details on timing or venue in an interview with Reuters Monday.

In the interview Trump pointed to an absence of missile or nuclear tests from Pyongyang as a measure of the success he's had in dealing with the reclusive regime, which last year was threatening the US mainland with nuclear strikes.

"I stopped (North Korea's) nuclear testing. I stopped (North Korea's) missile testing. Japan is thrilled. What's going to happen? Who knows? We're going to see," Trump said.

When the two leaders met in Singapore in June, Trump praised the young autocrat , saying Kim had "to be a rough guy," but that he's "smart, loves his people, he loves his country. He wants a lot of good things and that's why he's doing this."

Stalled negotiations

Read More