According to the outlet, the meeting was chaired by Chung Eui-yong, the director of national security at the presidential office. Defence Minister Jeong Kyeong-doo and National Intelligence Service chief Suh Hoon were among the attendees.
The ministers expressed strong concern about the continued firing of projectiles by North Korea.
According to the South Korean military, the projectiles flew 240 kilometres (150 miles) at a maximum altitude of 35 kilometres (21 miles).
Earlier in the day, the South Korean Joint Chiefs of Staff said that Pyongyang had fired two unidentified projectiles from the region near the city of Wonsan into the Sea of Japan following a months-long hiatus.