North Korea has allegedly fired four shots from multiple rocket launch systems into the western waters of the Yellow Sea, the Yonhap news agency reported on Sunday, citing South Korean military officials. According to the news agency, four projectiles fell into the sea within the hour from 7:20 a.m. local time on Sunday (22:00 GMT on Saturday). The South Korean National Security Council reportedly convened an emergency meeting to discuss the incident.

"There were shots believed to be that of North Korea`s multiple rocket launchers this morning," an official in the South Korean armed forces said, as quoted by the news agency. In addition, the official reportedly stressed that Seoul was monitoring developments in the region and maintaining the country`s defense preparedness.