A senior North Korean diplomat has reportedly said that U.S.-North Korea relations will soon witness a significant development.

According to a diplomatic source in Washington on Tuesday, Vice Foreign Minister Kim Yong-il made the comment when he met with high-level officials of Mongolia’s Foreign Ministry in Ulaanbaatar on Monday.

The source added that Kim reiterated that Pyongyang has no intentions of returning to the stalled six-way nuclear talks, but that the North wouldn’t reject talks with the U.S. if certain conditions are met.

Kim’s remarks suggest that efforts to open a North Korea-U.S. dialogue are approaching the final stages.