Dhaka, Oct. 16 -- All four people who suffered burns in an explosion triggered by a gas leakin Narayanganj's Kanchpur have now died.

The last to die was a 19-year-old identified only as Ronny, who succumbed to his injuries on Friday morning.

The blast, caused by a gas leak in a residential room, took place around 1:30am on Oct 9.

Those injured were identified only as Sharif, 34, his wife Rozina, 30, her brother Riaz, 22, and neighbour Ronny.

They had been undergoing treatment at the National Institute of Burn and Plastic Surgery since the accident.

Resident physician Sultan Mahmud Shikder said every effort was made to save the patients, but the extent of the burns and damage to their airways meant none could be saved.

Rozina, who ha...