One of the two minor siblings who were set on fire by their brother-in-law in the city's Adabor area on Tuesday, succumbed to her burn injuries at a Dhaka hospital on Friday morning.

The deceased was identified as 10-year-old Mitu, who had suffered 98% burns. She died at Sheikh Hasina National Institute of Burn and Plastic Surgery in the morning, said Bacchu Mia, inspector-in-charge of Dhaka Medical College and Hospital outpost.

Mitu’s five-year-old brother Bappy, who sustained 8% burns on his hands is currently recuperating at the same hospital.

Also read: 3 steel mill workers burnt by molten iron at Jatrabari

The two siblings, children of Babul Talukdar, a betel leaf seller, and Aklima Akter, a RMG factory worker, were set on fire at 12pm on Tuesday at a flat in Sunibir Housing Society in the Adabor area.

Owner of the building, Abdul Malek said that the brother-in-law of the victims, Allauddin, and his wife Mou lived in a rented flat on the ground floor of the building.

“On Tuesday, we rescued the two children hearing their screams and admitted them to the Sheikh Hasina National Institute of Burn and Plastic Surgery around 3pm,” he said.

Arif, a neighbour of Alauddin, said, “Hearing the screams, we rushed to the flat. After breaking open the door, we rescued both the siblings."

Also read: 10-month old burnt to death in Chandpur fire

In his statement to the police, Bappy said that the accused had called them to his house and set them ablaze. "He then locked the door from outside and left the spot."