A 14-year-old girl, who sustained burn injuries in a gas explosion near the BSCIC area of Sonargaon upazila in Narayanganj, died at Dhaka Medical College and Hospital on Monday night, becoming the third casualty in the family.
The deceased was identified as Munni Chowdhury, daughter of Manab Chowdhury.
Munni, who suffered 28 percent burns and was receiving treatment at the National Institute of Burn and Plastic Surgery, succumbed to her injuries around 9:45 pm, said resident surgeon Dr Shawon Bin Rahman.
Earlier, her parents, Manab Chowdhury and his wife Bacha, died at the same hospital.
Two other daughters of the couple, Tinni, 12, with 22 percent burns, and Mouri, 6, with 36 percent burns, are still undergoing treatment.
On September 4, all five members of the family sustained burn injuries after an explosion triggered by accumulated gas at their home.