North and South Korea have opened a joint liaison office in the Northern city of Kaesong on Friday, as they knit closer ties ahead of President Moon Jae In’s visit to Pyongyang next week, Agence France-Presse (AFP) reported.

“A new chapter in history is open here today,” South Korean unification minister Cho Myoung Gyon told a ceremony, calling the office “another symbol of peace jointly created by the South and the North.”

The two Koreas have sought to pursue joint projects in multiple fields since the April summit between Moon and the North’s leader Kim Jong Un, even as US efforts to secure concrete progress towards Pyongyang’s denuclearization have stalled.

On September 18, Moon is due in the North’s capital for a three-day visit. 

The North was “willing to denuclearize,” the South Korean president said Thursday, while the US was willing to “end hostile relations” and provide security guarantees, “but there is a blockage as both sides are demanding each other to act first.”