One person was killed and six others were injured on Monday in an apparent act of arson at a 21-storey apartment building in Seoul, officials said.
According to Yonhap News Agency, the fire occurred on the fourth floor of the apartment building in Bongcheon-dong at 8:17 am, police officials said.
Police said a man in his 60s, believed to be behind the arson, was found dead in the hallway on the fourth floor.
Two residents, estimated to be in their 70s and 80s, plunged to the first floor with full-body burns, while four others complained of breathing difficulties and were taken to hospital, according to firefighters.
Police found a note inside the residence of the suspected arsonist and are investigating the exact motive behind the crime.
They suspect the man poured oil into a pesticide applicator and started the fire.
Firefighters extinguished the flames nearly an hour and 40 minutes after the initial report of the fire.