At least 11 people died and 27 were critically injured in a gas line explosion at a mosque in Narayanganj Friday night.

The burn victims were undergoing treatment at Sheikh Hasina National Institute of Burn and Plastic Surgery.

The institute residential medical officer Partha Sankar Pal said that at least 11 died from their injuries till Saturday morning and 27 more were in a critical condition.

Some of the deceased were identified as Jewel, Ibrahim, Delwar, Mostafa Kamal, Sabbir, Junayed, Hamayun Kabir, Rifat, Kuddur Bepari, and Jamal.

At least 40 people were injured in the gas explosion at Baitus Salat Jame Masjid in Paschim Talla area under Fatulla police station in Narayanganj.

Most of them were admitted to Sheikh Hasina National Burn and Plastic Surgery Institute, fire service officials said.

Narayanganj fire service deputy assistant director Abdullah Al Arefin said that the explosion took place at about 9:00pm from gas leakage.

He said that the mosque was two-storied and a gas line was in the underground of the mosque.

There was a leak in the gas line and the ground-floor of the mosque was filled with leaked gas, he said.

Just before isha prayers, someone tried to switch on the fan when the explosion occurred, he said, adding that six air-conditioners in the room also exploded leaving at least 35 injured with burns.

Four units of fire service rushed to the spot and put out the fire in about 20 minutes, Arefin said.

Fire service ambulances carried some burn victims to Dhaka and Narayanganj hospitals, he added.