The body of an elderly woman was found in her son's house in Parnurulabad village of Naogaon's Manda upazila on Monday night.
The deceased was identified as Aklima Begum (60). Police suspect she was killed and have detained her daughter-in-law for questioning.
However, Laili Begum, the daughter-in-law of the deceased, said, "My husband is a microbus driver in Dhaka. My mother-in-law used to live with my brother-in-law. I brought her to our house on Thursday."
"She was alone in the house for few days as I had gone to visit my parents. When I returned home on Monday, I found the door locked from the outside. Later with the help of neighbours, I broke open the door only to find the body lying in a pool of blood," she said.
Officer-in-charge (OC) of Manda Police Station Shahinur Rahman said the daughter-in-law of the deceased has been detained for questioning in connection with the death.