The incident occurred around 2:00 am at a house on Haricharan Road in Gendaria.
The victims were identified as Moslem Uddin, 65, his wife, Salma Begum, 50, and their son Mejbah Uddin, 28.
Dr. Sultan Mahmud Sikder, acting resident surgeon at the National Institute of Burn and Plastic Surgery, said that the burns suffered by the members of the family were of a very serious nature.
The young son of the victim family was the most unfortunate for his entire body was burnt, followed by his father suffering 90 percent burns and his wife 55 percent.
The three victims got their tracheas burnt to different degrees and their conditions were stated to be critical.
The victims lived on the second floor of a building adjacent to the electrical transformer that exploded, said Tasnuva, Moslem’s daughter, reports UNB.
“A fire broke out and spread to the apartment following a loud bang in the middle of the night. The fire burned them before they could even realize what was happening,” she said.