A schoolteacher was killed and his wife sustained severe injuries as unidentified criminals attacked their house in the Nazirpur area of Pirojpur on Thursday, allegedly over a land dispute.
Shomiron Majumdar, 40, a teacher of local Baliari Government Primary School, died on the way to hospital.
His wife Swapna Majumdar was taken to a hospital with critical injuries.
The attack took place when they were asleep in their Baliari village home around 2am.
Police later detained a neighbour named Mojibor Howlader, 30, on suspicion and took him to police station for interrogation.
Quoting injured Swapna and the locals, OC of Nazirpur police M Habibur Rahman police station said that a group of miscreants had stormed the house and hacked the couple with sharp weapons.
When asked, several locals alleged the couple had land disputes with some people of the area.