The throat-slit bodies of a woman and her minor granddaughter were recovered from their house at Paschim Mulghar village in Sadar upazila of Rajbari district on Friday.
The deceased were identified as Shahida Begum, 50, wife of Shahjahan Mia of the village and her granddaughter Lamia, 5.
Quoting family sources, Police Superintendent of the district Asma Siddiqa Mili said family members spotted the bodies of Shahida and Lamia in the morning and informed police.
Later, police recovered the bodies.
However, the details behind the murder could not be known immediately, said the police official adding that they are investigating the incident.