A woman was arrested in Kulaura upazila yesterday on charge of killing her husband on Sunday.
The arrestee is Rima Begum, 35, wife of victim Abdul Muslim, 40, of Tattiuli village in the upazila.
The couple have four children.
Police said Rima hacked Muslim to death in front of their children over a family feud around 11:00pm on Sunday.
Muslim's sister-in-law Montaj Ali said following a phone call from the victim's 10-year-old daughter Sadia Begum, she rushed to the spot and found him in a pool of blood.
He was taken to the upazila health complex where on-duty doctor declared him dead.
Muslim's brother Mokhles Mia said all of a sudden Sadia saw her mother Rima hacking her (Sadia's) father in his sleep.
"As she screamed, Rima left the scene with her three-year-old son Shahid. Earlier in the evening, the couple locked in an altercation over a family issue," Mokhles said.
Muslim often tied his wife and two daughters and beat them mercilessly, he added.
The victim's brother filed a case, accusing Rima on Monday, said Shamim Musa, officer-in-charge of Kulaura Police Station.
Quoting the arrestee, the OC said as Muslim often beat his wife and two daughters mercilessly, she hacked him dead.