A man killed his uncle following a quarrel at Sheikhtola village in the district yesterday noon.
The victim was identified as Alamgir Hossain, 50.
Officer-in-Charge (OC) of Sadar Police Station Ahsanul Haque said the victim's goat damaged the lemon plants of his nephew Abdul Karim, which led to exchange of heated words.
At one point, Karim chopped his uncle indiscriminately with a spade, killing him on the spot.
Police arrested Karim, and his mother Amena Begum, 60, from the spot.