The South previously proposed holding military talks on easing border tensions on July 21 and Red Cross talks Tuesday to discuss the resumption of families separated by the 1950-53 Korean War.

"The government will make persistent efforts for North Korea's denuclearization, as well as peace and security on the Korean Peninsula," Baik said.

Moon unveiled his vision for bringing peace to the divided peninsula during his speech in Berlin in early July. His initiative includes making the North giving up nuclear weapons while guaranteeing the security of the North's regime.

Despite Seoul's vow to keep its dual-track approach, experts said that Seoul is likely to focus sanctions on the North for a while.

Moon ordered government officials on Saturday to consider fresh unilateral sanctions following the South's similar punitive measures in 2016 in response to Pyongyang's two nuke tests.

"Relevant ministries are known to be reviewing them," Baik said. (Yonhap)