Taiwan's official Central News Agency (CNA) reported quoting Kaohsiung Fire Bureau chief Lee Ching-hsiu that the blaze had started at around 2:54 am. local time (GMT+8) on the first floor of the residential multi-storey located in the city's Yancheng district, and it had risen to the sixth floor, filling the seventh and above floors with smoke, which caused most casualties.

Local media reported that more than 377 rescue workers and 139 fire tenders had continued the firefighting-and-rescue operation at the scene for hours and the blaze had been put out at 7:17 am local time.

Image: Twitter-grab from Carlos Juan Semidey

Kaohsiung authorities said 46 residents of the building died in the deadliest fire disaster in  Kaohsiung's history while 41 more were wounded and at least 62 people have been rescued from the 13-storey, where more than 100 residents, many of them senior citizens with physical disabilities, live.

CNA reported local police have initiated investigation into the cause of the fire while four witnesses have been summoned by the cops.