North Korean communist guerrillas targeted and attacked police stations with weak equipment and security in the Yeosu and Suncheon incidents, inflicting heavy casualties on police officers. Police officers were killed and their bodies were scattered.

 　　North Korean communist guerrillas targeted and attacked police stations with weak equipment and security in the Yeosu and Suncheon incidents. The casualties of police officers with weak firepower were also enormous. The police officers who were involved in the Yeosu and Suncheon Incidents were killed and their bodies were scattered. Jeollanam-do Province estimated the number of civilian victims of the Yeosu-Suncheon Incident at 11,131.

　　The Yeosu-Suncheon Incident took place on September 6, 1945, when the Korean government was established and a rebellion broke out in October 1948 when some of the troops stationed in Yeosu and Suncheon refused orders from the Syngman Rhee regime to deploy to Jeju Island to suppress the 4.3 Incident. The 14th Yeosu Regiment, which had received orders to deploy to Jeju, refused, saying that it could not massacre its own people. Korea has used the Yeosu-Suncheon Incident as its official name since 1995

　In the night of October 19, 1948, in the Yeosu-Suncheon area, about 40 members of the South Labor Party cell organization in the 14th Regiment of the National Defense Guard occupied an armory. They blew a trumpet and lined up about 2,000 members of the entire unit and urged them to make a rebellion resolution. A large number of North Korean sympathizers in the National Defense Guards responded with cheers. Those who opposed the insurgency were shot dead on the spot. This caused all of the insurgent units to join the insurgency. The insurgents immediately divided into vehicles and occupied the Yeosu Police Station and the Yeosu County Office in Yeosu-eup, killing about 100 police officers and about 500 civilians. Police officers, civil servants, and landowners who quelled the riot were captured and executed. Political prisoners imprisoned in the police station were released, and with their guidance, police officers from that town, as well as members of the pro-Lehman Hanmin Party and right-wing groups, were sought out and shot dead one after another. Within a few days, about 100 police officers and 500 pro-Ri civilians were killed by the insurgents.

　A week later, the ROK military crushed the insurgency, killing between 439 and 2,000 civilians in the process. In 1948, 18 officers and 1,693 privates were discharged from military service, and in 1949, 224 officers and 2,440 privates were discharged from military service, due to the suppression of officers who did not recognize Seung-man Rhee as president. The Syngman Rhee regime enacted the National Security Law on December 1, 1948, which suppressed the entire society.