The blast took place at a food court on the 12th floor of the Shin Kong Mitsukoshi department store in Taichung City at 11.33 am local time, the Taichung Fire Bureau said.
The blast was so powerful it threw at least four people out the windows of the building in the Xitun district, Focus Taiwan quoted the bureau as reporting after speaking to eyewitnesses.
At least one person died and 11 were injured after a suspected gas explosion tore away the top floor of a department store in central Taiwan on Thursday.
The death toll was expected to rise as four of the 11 injured people had no vital signs, the bureau said.
Eyewitnesses say impact of powerful blast threw four people out of building.
