The death toll from the explosion at a container depot in Patenga area of Chattogram district on Wednesday has climbed to four following death of another injured worker.
Md Rabiul, a worker, succumbed to his injuries at a hospital in the capital around 10pm on Wednesday, said Mohammad Zobair Syed, officer-in-charge of Patenga Police Station.
Dr Md S Khaled, assistant professor of Chattagram Medical College Hospital burn unit, said Rabiul received 95 percent burn injuries and he was referred to Dhaka.
Also read: Blast at Chattogram container depot leaves 3 dead
Earlier, three workers Jubayer Sabbir, 26, Amir Hossain, 32 and Rabiul Alam, 31, died in the blast incident.
The explosion occurred at noon while they repairing a fuel tank of a prime mover at Inktrend Container Depot located at Bijoy Nagar of Patenga.
A team of criminal investigation has visited the spot, said the OC.