Another victim, who received burns in a gas explosion at a residential building in Narayanganj, has died at Sheikh Hasina National Institute of Burn and Plastic Surgery in Dhaka.
With this, the death toll reaches four in the incident.
Md Sabbir, 15, who sustained 42% burns, died while undergoing treatment at the intensive care unit (ICU) of the institute around 5:30am on Saturday, confirmed the victim's uncle Md Shahid.
On March 9, fire erupted from an explosion on the top floor of a six-storey building in Masdair Patenga Mor area of Fatullah.
Also Read - Narayanganj gas cylinder explosion: Death toll reaches three
Garment worker Md Mishal, 27, his wife Mita, 23, their 18-month-old son Minhaj, and daughter Afsana, 5, and Mita's two cousins Mahfuzul Rahman, 12, and Sabbir received burns in the incident.
Deputy Director of Narayanganj Fire Service and Civil Defence Mohammad Abdullah Al Arefin told Dhaka Tribune that the explosion was caused by a leak in a gas cylinder. It is thought that the gas spread throughout the flat, then came in contact with an electric spark or a combustible object.
The victims were first admitted to Narayanganj General Hospital, and were later transferred to Dhaka as their conditions deteriorated.
Mishal, Mahfuzul, and Minhaj died at the burn institute on Wednesday, Thursday, and Friday respectively.
Two others -- Mita and Afsana -- with 14% and 10% burns respectively are now undergoing treatment at the hospital.