SEOUL, South Korea — North Korean officials did not show up on Thursday for a meeting with Americans at the inter-Korean border to discuss the return of remains of United States soldiers killed in the Korean War, officials said.

Kim Jong-un, the North’s leader, committed in his June talks with President Trump to repatriating American soldiers’ remains. Secretary of State Mike Pompeo said last week, after meeting with officials in North Korea, that working-level talks on the matter would be held on or around Thursday in Panmunjom, the “truce village” on the border between North and South Korea.

Though American military officials went to Panmunjom for the meeting on Thursday, their North Korean counterparts did not, according to a United States defense official who spoke on the condition of anonymity because of the sensitivity of the matter. A South Korean government official, who also asked for anonymity, confirmed that the North Koreans had not shown up at Panmunjom.

It was not clear whether the Americans had been deliberately stood up. Mr. Pompeo had cautioned that the date for the planned meeting at Panmunjom “could move by one day or two,” indicating that the two sides had not settled all the details before he left Pyongyang, the North Korean capital, on Saturday.