North Korea fired several cruise missiles into the Yellow Sea on Saturday, the Joint Chiefs of Staff (JCS) said, APA reports citing Yonhap News Agency.
South Korean and U.S. intelligence authorities were analyzing the launches, which took place at about 4:00 a.m., to learn more about the type of missiles fired and other details, according to the JCS.
"Our military has bolstered surveillance and vigilance while closely cooperating with the United States and maintaining a firm readiness posture," the JCS said, adding it is closely monitoring additional activities by the North.