Criminals beat a man to death in a feud allegedly over sharing a cigarette in Sadar upazila of the district on Saturday night.
The deceased, Maznu Mia, 35, caretaker of an apartment, was son of Tonu Mia of Uttar Jagannathpur village in the upazila.
Meanwhile, police detained local youths Sumon Mia and Seful Mia the same night for their alleged involvement in the murder, Officer in Charge (OC) of Sadar Police Station Sohel Ahmed said.
Quoting local people, police said Maznu had an altercation with Sumon and Seful when the duo asked him for a cigarette.
At one stage, the duo beat up Maznu mercilessly with branch of a tree, leaving him unconscious on the spot around 9:00pm.
Locals rescued Maznu and took him Moulvibazar Sadar Hospital, where the doctors declared him dead around 10:00pm.
On information, police recovered the body and sent it to the hospital for autopsy, the OC said.