Bodies of two siblings were recovered from the No Mans' Land along Bangladesh-India border in Parshuram upazila of Feni on Sunday.
The deceased were Karim (28) and his brother Swapan (24), sons of Kaladhan Sarkar of Ward No 8 of Guthuma municipality area.
Kaladhan said the duo had gone for fishing in the early hours on Sunday but did not return.
Assistant Superintendent of Police Nishan Chakma said the cause of their death is not clear yet as the bodies bore no injury marks.
Members of Border Guard Bangladesh (BGB) handed over the bodies to police in the afternoon after a flag meeting with Indian Border Security Force (BSF), the ASP said.
The bodies have been sent to Feni Sadar Hospital for autopsy, he added.