A man was chopped to death and his two brothers suffered injuries in an attack allegedly by their rivals at Baniachal village in Sadar upazila on Saturday.
The deceased was identified as Rashid Miah, 42, son of Barek Miah of the village while the injured are Khorshed Miah, 45, and Asad Miah, 35.
Officer-in-charge of Sadar Police Station Golam Mostafa said the followers of Brahmandi group had an altercation with supporters of Baniachal group over a trifling matter at Shikkha chatter around 5:30 pm.
Later, a rumour spread around that members of Baniachal group, including Rashid, picked up Babu, a man of Brahmandi group.
Brahmandi group members swooped on Rashid and his family members and chopped them with sharp weapons indiscriminately, leaving Rashid and his two brothers injured.
They were taken to Sadar Hospital where doctors declared Rashid dead.
Khorshed was sent to Dhaka Medical College Hospital in the capital in a critical condition, the OC added.
Meanwhile, police arrested Babu, 25, from the spot.