The police recovered the bodies of three workers from the septic tank of a building under construction in Nasirnagar, Brahmanbaria.
The incident took place at Gutma village in Guniauk union of the upazila on Sunday.
Nasirnagar Police Station Officer-in-Charge (OC) Sohag Rana confirmed the matter.
He said that the police and fire service reached the spot after receiving the information and are doing rescue work. However, the names of the deceased have not yet been revealed. However, the police are investigating what caused the incident.
