The police recovered the body of a 10-year-old boy from a pond in Dewanganj of Feni on Thursday, four days after he went missing.
Ahnaf Al Main Nashit, son of Main Uddin Sohag of Feni Academy area, was a third-grade student at Feni Grammar School.
The police arrested three people in this connection, Feni Superintendent of Police Habibur Rahman said at a press conference.
According to the police, Ahnaf went missing on Monday while he was returning home from his private tuition on Atiqul Alam Road.
Following his disappearance, unidentified people demanded a ransom of Tk 12 lakh from his father.
Later, Main Uddin filed a kidnapping case with the Feni Model police station.
During the investigation, the police detained Ashraf Hossain Tushar, 20, who later confessed to his involvement.
Acting on his information, authorities recovered Ahnaf鈥檚 body, which had been tied with stones inside a school bag and dumped in a pond near the Dewanganj railway line.
The police also arrested two more suspects Md Mobarak Hossain Washim, 20 and Omar Faruk, 20.
Feni Model police station officer-in-charge Mormo Singh Tripura said the body has been sent to the morgue for an autopsy.