The bus, which was stationary at the time on a busy road, was buried under the rubble in Gwangju, 一些 270 公里 (168 英里) southwest of the capital, 汉城.
进一步 25 人们受伤, including eight seriously, the ministry added.
的 16 demolition workers on the site are safe and did not sustain any injuries as the building collapsed.
Approximately 190 firefighters were deployed for search and rescue, and police joined the rescue effort, the ministry said.
The reason for the collapse was unclear, Reuters reported, citing officials at the Gwangju Fire and Safety Headquarters. The Ministry of Land, Infrastructure and Transport will investigate the cause of the collapse.
South Korea has struggled with a bad safety record of infrastructure — a department store collapse killed more than 500 人们在 1995, and a bridge collapse in 1994 被杀 49 人. 最近几年, the country has tried to improve its safety record.