North Korean Foreign Minister Ri Su Yong has told Japan that Pyongyang will deliver in early September the first report on its ongoing investigation into the fate of Japanese nationals abducted by its agents in the past, diplomatic sources said on Wednesday.

The timing was conveyed to Japanese Foreign Minister Fumio Kishida during an exchange with Ri on Sunday in Myanmar, where both ministers were attending a regional security summit, according to the sources.

Ri's remarks indicate the report may be released by Sept. 10, since North Korea had previously said it would not be delivered until at least the second week in September.