Two boys drowned after a boat carrying them capsized in the Kapotaksha river in Maheshpur upazila of the district on Friday.
The deceased were identified as Jibon, 14, and his paternal cousin Sabbir Hossain, 9. They were residents of Hospitalpara under Maheshpur municipality.
Locals said several boys including the victims went to the river to take bath in the afternoon. After taking the bath they all boarded a boat which suddenly capsized in the municipality area nearby Kampara Rajdhani Bakery.
Though others managed to swim ashore, the victims drowned in the river, they said.
Md Abdus Sobhan Howladar, station officer (acting) of Maheshpur Fire Service said on information their divers rushed to the spot and recovered the bodies from the river after two hours of searching.
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Selim Miah, officer-in-charge of Mahespur Police Station said they handed over the bodies to the families upon their asking without an autopsy.
However, an unnatural death case was filed with the police station, he added.