Six garment workers were injured as a gas cylinder exploded at a house at Dahargaon in Rupganj upazila of Narayanganj district early Saturday.
The injured were Abul Hossain, 50, Shelly Akhter, 35, Munni Akter, 22, Jewel, 20, Ismail, 23 and Taslima, 16.
A fire broke out after the gas cylinder went off with a big bang around 2:30 am, leaving them injured.
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Later, they were taken to Sheikh Sheikh Hasina National Institute of Burn and Plastic Surgery (SHNIBPS).
All of them suffered 55% burn injuries and are not out of danger, said resident medical officer of the institute Tariqul Islam.
Mughal Mia, a witness, said the fire broke out at the house as someone tried to light a mosquito coil at night.