According to police, the deceased have been identified as 45-year-old Siddique 22-year-old Zubair, and 23-year-old Ghaffran.
Police say that the firing was allegedly carried out by a man identified as Atif and his accomplices. The bodies have been shifted to the Rural Health Center by the police.
In a separate incident, at least two died including a woman in the Jacobabad firing incident.
The incident occurred in the jurisdiction of Ghari Khairu police station where a man identified as Lal Bakhsh Buledi opened fire on his niece and one other youth and killed them.
The police officials said that the dead bodies have been moved to the nearby hospital and further investigation is underway.
Before this, at least three people died including a woman in two firing incidents that occurred in Jacobabad.
The first firing incident occurred near a bus stand in the Dodapur police station vicinity which resulted in the killing of two people identified as Rahm Ali and Muhammad Amin.