Dhaka, March 17 -- The death toll in the fire from cylinder gas on a street in Gazipur's Kaliakair has reached six after a couple succumbed to their burn injuries.

Nargis Akter, 22, the latest victim, died at the Sheikh Hasina National Institute of Burn and Plastic Surgery in Dhaka on Sunday evening, said resident physician Dr Partha Shankar Paul.

He said Nargis had over 90 percent of her body surface burnt.

Nargis' husband Mohidul Khan, 25, and another injured man Ariful Islam, 38, died earlier in the day.

Mohidul's cousin Md Fazlu said the couple from Sirajganj's Shahjadpur were working in Gazipur, leaving their only son back at their village home.

Mohidul worked in a textile scraps factory while Nargis in a garment factory.

His s...