South Korean Unification Ministry on January 17, 2018 shows South Korean chief delegate Chun Hae-Sung (R) shaking hands with North Korean chief delegate Jon Jong-Su (L) as they exchange joint statements during their working-level talks at the South side of the border truce village of Panmunjom in the Demilitarized zone dividing the two Koreas. Pic/AFP

Bitter cross-border enemies North and South Korea on Wednesday said both countries would march under a single flag during the opening ceremony of the upcoming Winter Olympics. The development comes amid talks aimed at reducing tensions between the two nations still technically engaged in internecine war, Efe news agency reported.