Chattogram, June 26 -- Four people died in two separate incidents after entering septic tanks in Chattogram city and the district's Raozan upazila on Friday.

In the city, two construction workers died after becoming trapped inside a septic tank while working at an under-construction multi-storey building in Dhaniyalapara under Double Mooring police station.

The deceased were identified as Sakib and Hridoy.

Double Mooring Police Station Officer-in-Charge (OC) Shahinur Alam said the incident occurred around noon at a building under construction near American Building and Lucky Mansion in the Choto Mosque by-lane area of Dhaniyalapara.

The two workers reportedly suffocated after entering the septic tank on the ground floor of the buildin...