Dhaka: A Dhaka court on Friday placed victim's husband and his third wife on 6-day police custody for interrogation in a case over the killing of a woman and her son in Dhaka's Kakrail area.

Those remanded are Abdul Karim, 56, husband of Shamsun Nahar and his third wife Sharmin Akhter Mukta, 25.

Dhaka Metropolitan Magistrate Khurshid Alam passed the order after Ali Hossain, sub-inspector of Ramna Police Station, and also the investigation officer of the case, produced them before the court seeking a 10-day police quizzing.

Earlier Ashraf Ali, brother of victim Shamsun Nahar, filed the case accusing Abdul Karim, Sharmin Akhter Mukta, her brother Al Amin alias Jonny, 33, on Thursday night, said Mainul, officer-in-charge of Ramna Police Station.

On Wednesday, Shamsun Nahar, 40 and her son Shawon, 22, were found dead in a flat of a multi-storey building in the city's Kakrail area.

Police went to the spot and recovered their bloodstained bodies.