Dhaka, March 20 -- A fire from a leaked gas cylinder pipe has burnt four workers, one of them critically, at a restaurant in Dhaka's Malibagh.

The critically burnt victim Hannan Hosain, 28, was admitted to the Sheikh Hasina National Institute of Burn and Plastic Surgery after the incident at Shahjalal Hotel and Restaurant just before Iftar on Wednesday.

Resident physician Md Tarikul Islam said Hannan had 65 percent of his body surface burnt.

Rubel, a cousin of Hannan who gave a single name, said Hannan was the naan and grilled chicken chef of the restaurant at Malibagh bend.

The three other injured workers were admitted to the burns unit of Dhaka Medical College Hospital.

They are Md Sabuj, 20, Md Maruf, 16, and Julhas, 18, who was i...