A banner showing the 2018 Pyeongchang Winter Olympic official mascots is displayed at the Imjingak Pavilion in Paju, near the border with North Korea. The banner reads: "Passion. Connected." Picture: Ahn Young-joon/AP

Seoul - North and South Korea have agreed to march into the Olympic stadium together during the opening ceremony of the Pyeongchang Winter Olympics on February 9, the Unification Ministry in Seoul said Wednesday.

During a second round of working-level talks in the shared border village of Panmunjom, the two countries agreed to march together under a "unified Korea" flag, news agency Yonhap reported, citing the ministry.

During talks on January 9 - the first face-to-face talks between the countries since 2015 - the North pledged to send a delegation of athletes and high-level officials to the January 9-25 games.