Both had their limbs tied with ropes.
Chatkhil Police Station OC Ibrahim Khalil said they rushed to Paschim Delia village in Khilparha Union after locals informed them about the corpses.
Locals found a body in a dry canal on their way back from Fazr prayers on Monday morning, said Khilparha Union Parishad (UP) Chairman Alamgir Hossain.
The left part of the youth’s face appeared to be blown away.
The other body was found 300 yards away, floating in a pond, said UP member Shams Uddin Bahar.