The bodies of husband, wife and their eight-month-old child have been recovered from the rented house of their relative at Amirabad in Madaripur town. The incident happened late Sunday night.
The deceased were Chinmoy Das of Kalagachia area under Sadar upazila, his wife Isha Das, and their eight-month-old child.
According to police and local sources, Misti Baroi, wife of Italy-based expatriate Jatin Baroi from village Satpar under Muksudpur upazila in Gopalganj district, has been living as a tenant at the rented house over the last three years. The house is owned by Santona Rani Chanda, wife of late Birendranath Dutta, at Amirabad.
On Sunday afternoon, Chinmoy Das arrived at the house with his wife and infant, introducing himself as Misti Baroi's cousin.
After receiving information, police went to the house late at night and broke open the room and recovered the bodies.
Police said Chinmoy Das and his son were found hanging with the ceiling fan inside the room while Isha Das' body was lying on the bed.
Madaripur Sadar Model Police Station Officer-in-Charge Abul Kalam Azad said Misti Baroi was alone in an adjacent room at the time of the incident, and police responded after receiving a call from her.
He said police are investigating whether the deaths were the result of murder or suicide. However, Misti Baroi has initially been placed under suspicion.
Madaripur RAB-8 Camp Commander Md Moniruzzaman said they visited the spot and collected various evidence. "The incident can't be termed either murder or suicide right now. We have started investigation. It'll be possibe to unearth the mystery behind the incident after investigation," he said.
The bodies were later sent to the morgue of Madaripur 250-bed District Sadar Hospital for autopsies.
The incident has created widespread sensation in the area.
END/CORRESPONDENT/ASA