Two people were arrested in connection with the murder of Amir Hossain, assistant sub-inspector (ASI) of Brahmanbaria Sadar Model Police Station.
The arrestees are Abul Hossain, 30 and Ismail Hossain, 20. Ismail Hossain is the brother of Mamun Mia, the key accused of the killing.
"They were arrested in a raid in Chandpur and Shahpur villages of Machihata union early this morning. We are trying to nab the key accused Mamun," said Muhammad Shahjahan, inspector (Investigation) of the Brahmanbaria Sadar Model Police Station.
Another ASI of the police station named Mani Shankar Chakma filed a case on Friday night in this regard.
Earlier on Friday, ASI Amir Hossain, 35, along with his colleague Mani Shankar went to arrest Mamun Mia, son of Musa Mia of Chandpur village in Machihata Union. During the drive, the accused Mamun Mia attacked Amir and Mani Shankar with sharp weapons. Amir was taken to the district's sadar hospital in critical condition where the duty doctor pronounced him dead.