The second-storey detached house, which was under renovation in Busan, collapsed and five workers were buried. Three were rescued and two were killed.

The police believe the accidents were likely due to weak building structures in the process of remodeling homes more than 40 years old.

At 11:04 am today, the second-storey detached house suddenly collapsed in Yeonsan-dong, Yeonje-gu, Busan.

At the time, eight people were working on the first floor of the house, but with the collapse of the building, only three people were evacuated and the other five were buried in a pile of collapsed houses.

Immediately after the accident, three firefighting authorities rescued three people, two injured and one in serious.

Later, a man in his 70s was rescued and taken to the hospital, but died.

The seriously injured Lee said he was remodeling the day with seven workers, including his 20s son.

The police found that some walls and doors were removed and the H-beams were raised during the remodeling of the accident home.

Police confirmed the evacuator's statement that during the reinforcement of the column, there were several noises from the iron column near the window and collapsed as soon as the site was evacuated.

Police are investigating the cause of the accident, keeping in mind the possibility that the building collapsed due to the renovation of a 46-year-old house.

In the aftermath of the collapse, city gas pipelines were cut off, which cut off gas supplies to some of the neighboring homes as the Gas Corporation struck emergency measures.

Police will identify the site of the collapse and determine the exact cause of the accident.

(Video provided by Busan Fire Department, Video Editing: Eunkyung Lee)