A man stabbed his wife and 13-year-old daughter dead at their residence in Siddhirganj area of Narayanganj Sadar upazila early today.
The deceased are Moyna Begum, 26, and her daughter Swapna, reports our Narayanganj correspondent.
Police arrested Moyna’s husband Sumon Miah, 32, a cloth trader, from the scene, said Md Alauddin, officer-in-charge of Siddhirganj Police Station.
The killings might have taken place over a family feud, police said.
Hearing the shouts of Moyna and her children, neighbours rushed to their house at Mukki Nagar in Hirajheel around 3:00am.
Through the window, they saw Sumon stabbing his wife with a kitchen knife, the OC said quoting the locals.
Sumon also stabbed Swapna when she went to save her mother, the police official said.
As the neighbours tried to open the door, they found the door locked from inside.
Finding no way, they locked the door from outside and informed police.
Sumon, sensing presence of the law enforcers, made his eight-year-old son Imon hostage and threatened to kill him.
But police broke open the window, rescued Imon and handcuffed Sumon.