The brothers, in their early thirties, were detained after their father reported the incident in the eastern city of Lahore.
“Shaban Ahmed, father of the accused, reported the incident to the police saying his sons have killed his wife, Sughra 50 years old, and his daughters Muqadas, 18, and Amina, 16,” local police official Mohammad Ayub told AFP.
Last year 869 women died in so-called “honour killings” according to the independent Human Rights Commission of Pakistan.
The statistics highlight the violence suffered by many women in conservative Muslim Pakistan, where they are frequently treated as second-class citizens.
Many Pakistani women have no say in who they marry and disobeying the wishes of relatives is believed to bring shame on the whole family- AFP