An elderly man was beaten to death by his nephew in the Shahidnagar area of Narayanganj on Tuesday.
Rasel, 25, beat his uncle Abdul Khalek, 60, to death over a land dispute.
Narayanganj police's Sub-Inspector (SI) Shafiqul Islam confirmed the matter to Dhaka Tribune, saying that Rasel had already been detained.
The SI said: "Abdul Khalek got into an argument over land with his nephew, Rasel, at 9pm on Tuesday. At this time, Khalek died at the spot due to injuries received when Rasel turned violent."
The SI added that a case would soon be filed regarding the matter and that Khalek's body had been sent to the morgue of the city's 100 bed hospital for autopsy.