Two cousins drowned in a pond of Gohat village in Chandpur's Kachua upazila on Thursday.
The deceased were identified as Eva Sultana, daughter of Babul Hossain and Saira Rahman Adiba, daughter of Arifur Rahman of the village.
Both were 5 years old and students at Latifia Dakhil Madrasa.
Quoting locals, officer-in-charge (OC) of Kachua Police Station, Md Ibrahim Khalil said the children fell into the pond while playing on its bank in absence of their family members.
Locals spotted them floating in the water body and took them to the Upazila Health Complex, where doctors declared them dead.
The bodies were handed over to their families, said the OC.
A pall of gloom descended on the village following the tragic incident