Unknown attackers entered a house and shot dead down three persons and critically injured another in Sadiqabad on Saturday, reported 24NewsHD TV channel.
The house was located at Chowk Shahbaz in the Darkhara area of the Sadiqbad city.
The police investigators suspected that the killings were the result of a personal enmity.
The dead bodies and the injured were shifted to a hospital.
Reporter Malik Javed