The deceased were Md Yusuf, 30 of Cox’s Bazar district and Md Idris, 26, son of Nasir Uddin of Chandanaish upazila.
They breathed their last while undergoing treatment at the hospital, said Dr Mohammad Khaled of Chattogram Medical College Hospital.
Ten people suffered burn injuries when a gas cylinder exploded on September 17.
The injured were taken to Chattogram Medical College and Hospital from where four of them were sent to the National Institute of Burn and Plastic Surgery for better treatment, reports UNB.
Six of the injured are undergoing treatment at CMCH with 40-70 percent burn injuries.