Dhaka, July 11 -- Five members of a family have suffered burn injuries after an explosion caused by a gas leak in Dhaka's Sutrapur.

The incident occurred in the Kagojitola area at 2am on Friday, and the injured were taken to the National Burn and Plastic Surgery Institute at 3:30am.

They are receiving medical treatment at the facility and are currently in "critical condition", according to Dr Shawon Bin Rahman, resident surgeon at the emergency department of the institute.

The injured have been identified as van driver Ripon, 35, his wife Mossammat Chandni, 32, and their children Md Tamim, 16, Md Rokon, 12, and Mossammat Ayesha, 1.

Shawon said, "Ripon has burns on 60 percent of his body, Chandni on 45, Tamim 42, Rokon 60, and Ayesha 6...