A 7-year-old child died after falling into an under-construction septic tank in Khalishpur area of Khulna city on Saturday morning.
The deceased was identified as Abdullah, son of Abul Kalam, a resident of Khalishpur Bangabasi area.
According to the locals, construction work was going on at Khalishpur Municipal Super Market where the septic tank was left uncovered and Abdullah fell into it while playing there.
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His body was recovered after an hour of frantic effort, they said.
Khalishpur police officer-in-charge (OC) Kamal Hossain said an unnatural death case has been registered at the police station.