Dhaka, Feb. 24 -- A teenage boy has died a day after his mother succumbed to burn injuries from a gas explosion at a flat in Chattogram's Halishahar, raising the death toll in the incident to two.

The victim, 16-year-old Shawon, had suffered burns across 50 percent of his body, including his respiratory tract, and was undergoing treatment at Dhaka's National Institute of Burn and Plastic Surgery's MHDU, according to Dr Shawon Bin Rahman, resident surgeon at the facility. He died around 7am on Tuesday.

Shawon's mother, 40-year-old Nurjahan Akter Rani, died on Monday while being taken to Dhaka with eight other burn victims for advanced treatment.

After admitting the patients on Monday evening, Dr Shawon had said Rani died before reaching...