According to police, the shooting took place on Thursday evening as officers responded to a ShotSpotter notification at 6:20pm (23:20 BST).
The location of the shooting was near a bar in the 200 block of Clinton Place and the shots reportedly came from a stolen SUV.
Newark Acting Public Safety Director Raul Malave told NJ.com: “Three adult victims and one juvenile [17 years old] arrived at Newark Beth Israel Medical Center for treatment of gunshot injuries.
“Four other adult victims were transported to University Hospital for treatment of gunshot injuries.”
The Director added that the injuries are non-life-threatening.
No arrests have been made and detectives are working to understand the motive for the incident.