The deceased were identified as Md Ibrahim, 4, son of Md Abu Sufiyan, and Nadim Hossain, 3, son of Md Sharif, both residents of the upazila.
Quoting local people, Bimol Karmokar, officer-in-charge of Companiganj Police Station, said the two children fell into a pond near their house in the afternoon while their family members were engaged with household chores.
Getting no whereabouts of the two children for long, their family members began searching for them and eventually recovered their bodies from the pond, reports UNB.
They were taken to Companiganj Upazila Health Complex, where doctors declared them dead.