To mark the third anniversary of the Pyeongyang joint declaration, South Korea's unification ministry held an event on Friday to discuss inter-Korean relations.
The joint agreement signed on September 19th, 2018 stipulates a wide range of matters, from lowering military tensions to fostering economic cooperation and resolving humanitarian issues.
The unification minister said through the joint declaration, the two Koreas have agreed to take inter-Korean relations to a (quote) "higher level".
But added that Seoul has not been able to resume dialogue with the North since the Pyeongyang Declaration was signed.
He said the government will keep making efforts to improve relations.
"Unfortunately, for the past three years we have not been able to take a step forward regarding peace on the Korean Peninsula. But even if it takes time, we will keep on doing what we have to do to achieve peace."
Relations between the two Koreas took a tumble in June last year when the North blew up a joint liaison office in the border town of Kaesong.
The hotline between the North and South was restored after about a year, but Pyeongyang remains unresponsive to Seoul's calls for further talks and cross-border exchanges.
Bae Eun-ji, Arirang News.