[2] Twenty of those killed were trapped in a sauna on the second floor of the building,[3][4] which also housed a variety of other commercial establishments including a gym, a golf practice facility, and a number of restaurants.

[7] Jecheon Fire Department arrived at 16:00 (KST), but were unable to approach because of the explosion risk of the vehicle and LP gas tank on the first floor.

[9] The crime lab concluded that the fire was started by a spark in the heating wires that were being installed in the ceiling pipes on the first floor parking lot.

Moreover, there were no employees to help evacuate and the automatic door at the main entrance was broken, making it harder for victims to escape and causing more casualties.

[3] On 25 December 2017, the police raided the homes of both the owner of the building and the manager to collect evidence that would help charge them with manslaughter caused by professional negligence and violation of the fire law.