Three workers died while working inside a septic tank at a Cyclone Shelter at South-West Chachra Government Primary School building in Bhola's Tajumuddin Upazila on Monday.
The incident took place at around 12:00 pm at Dakshin Chachra village under Chachra union in the Upazila. Tajumuddin Upazila Nirbahi Officer (UNO) Pallab Kumar Hazra confirmed the information.
The deceased were identified as Md Rakib, 35, Saddam, 30, and Ala Uddin, 35. Among them, Rakib and Saddam are residents of Shibpur Khaser Hat area of Tajumuddin Upazila and Ala Uddin is a resident of ward no 5 of Chachara UP of the same Upazila, said Riaz Uddin Hannan, chairman of the UP.
According to locals, Rakib and Saddam were working inside the septic tank of the Cyclone Shelter cum school. After hearing Rakib and Saddam shout, Ala Uddin also dropped into the septic tank. All three died on the spot.