U.S. President Donald Trump, left, shakes hands with North Korean leader Kim Jong-un on Feb. 27, at Sofitel Legend Metropole Hanoi in Vietnam. Korea Times file

U.S. President Donald Trump said Tuesday he will meet with North Korean leader Kim Jong-un "at some point," further casting doubt on a possible summit during his trip to the peninsula this week.

Trump will visit Seoul on Saturday and Sunday after attending a Group of 20 summit in Japan, prompting speculation that a Trump-Kim meeting could be arranged at the inter-Korean border.

The last time they met was for their second summit in Vietnam in February. Both men walked away without a deal due to gaps over the scope of North Korea's denuclearization and sanctions relief from the U.S.

A senior U.S. administration official told reporters Monday that there were "no plans" for another meeting. Trump will be in Seoul to see President Moon Jae-in, he said.