The opponents shot dead the father and his son who were going to appear before court in Pattoki, reported 24NewsHD TV channel on Thursday.
According to the police, the mother was safe from the firing.
Meanwhile, a poor father of four children was brutally tortured for taking biscuits from a shop to satisfy hunger in Mian Chanun.
According to police four accused tied hands and tortured a person named Sajid on the charge of carrying biscuits.
Sajid picked up a biscuit when he was hungry while the accused blamed him of theft and subjected him to the worst torture.
Among the accused Moin, Amin and Rashid are included. However, Police Station Sadar arrested a person.
Police said an FIR will be lodged after the medical examination of the victim.
Reporters: Malik Muhammad Akmal and Ghulam Haider