Dhaka, May 12 -- Police have arrested a man called Golam Rabbani Taj to "unravel the mystery" of the gruesome killing of two sisters at a house in Dhaka's Shewrapara.

Deputy Commissioner Muhammad Talebur Rahman, spokesman for the Dhaka Metropolitan Police (DMP), shared the information in a statement on Monday.

The DMP will provide detailed information on the case at a press briefing, the statement said.

On Friday, two sisters- Mariam Begum, 60, and Sufia Begum, 52 - were killed by stabbing and bashing with a mortar and pestle at a flat in West Shewrapara.

The Shewrapara building near the metro station is owned by the family of Civil Aviation and Tourism Secretary Nasreen Jahan. The family of the dead lived there for 20 years.

Mariam ...