A man was killed by his wife over a family feud in Ghatiara village in Brahmanbaria Sadar upazila on Saturday.
The deceased was identified as Tajul Islam, 50, son of Emran Mollah of the village.
Police arrested his wife Samsia Akter Toha, 45, from the spot for questioning, said Sohrab Al Hossain, inspector (Investigation) of Brahmanbaria Sadar Model police station.
According to sources, the couple used to fight over various issues when Tajul returned to the country two months back after staying in Saudi Arabia for two decades.
On Friday night, Toha had an altercation with Tajul about closing the windows of the house. At one point, Tajul slapped Toha.
Later, aggrieved Toha hit him back, leaving him injured.
Tajul was taken to District Sadar Hospital where he succumbed to his injuries, said the inspector.
The body has been kept in the hospital morgue for autopsy.
The deceased's father, Emran Mollah, lodged a complaint at the Sadar Model police station in this regard.