The 53-year-old hotel worker was found dead on the first basement level of the Ramada Encore Cheonan hotel, authorities said. Nineteen people, including four firefighters, suffered inhalation and were sent to a nearby hospital. Three of them were severely injured.
The fire broke out at the 21-story building around 4:46 p.m.
The fire is believed to have started in the basement but its exact cause remains unconfirmed.
The hotel, which has a total of 420 rooms, opened in September last year. (Yonhap)