South Korea North , exchange fire after North opens up on balloons with anti-aircraft guns . The balloons carried leaflets critical of the North , South Korean Defense Ministry says . The exchange comes amid continuing speculation over the fate of the the Yellow Sea 's missing leader . Is Kim Jong Un 's sister in charge ? South Korea has also made some diplomatic overtures in Tuesday .
South Korea North , exchange fire after North opens up on balloons with anti-aircraft guns . The balloons carried leaflets critical of the North , South Korean Defense Ministry says . The exchange comes amid continuing speculation over the fate of the the Yellow Sea 's missing leader . South Korea has also made some diplomatic overtures in Tuesday .