The explosion took place while the workers were melting iron in a furnace, Shamim Sheikh, Inspector (Investigation) of Sitakunda police station said
Five workers sustained burn injuries in an explosion at a steel mill at Banur Bazar in Sitakunda upazila of Chittagong.
The injured were identified as Rajib Biswas, 33, Jatramoi Tripura, 22, Abu Hasan, 24, Md Babul, 34, and Hashem, 40, workers of Sheema Steel Mills Ltd.
Shamim Sheikh, Inspector (Investigation) of Sitakunda police station, said the explosion took place around 11:30am while the workers were melting iron in a furnace.
Melted iron sprang out of the furnace and fell on the workers following the blast, leaving them injured, he said.
Being rescued by co-workers, they were taken to a private hospital in Chittagong.
This is third incident of explosion in the mill.
On June 15, 2010, a worker was killed while 10 others were injured in a furnace explosion at the mill.
Nine workers suffered burn injuries in another explosion in 2017.