Officers were dispatched to 1500 E. First St at around 10:45 p.m. on Sept. 22, according to the Pomona Police Department.
Paramedics rushed the wounded people to a hospital, where two were treated and released. Two victims had stable vital signs and the victim who was hospitalized in critical condition died Saturday morning, Pomona police Sgt. Edgard Padilla said.
Officials did not provide any further information regarding the shooting, the suspect or the motivation at this time. Officials have not confirmed whether the suspect is in custody or not.
Pomona police urge anyone with information about the shooting to call them at 909-620-2085 or Crime Stoppers at 800-222-8477.
This is a developing story. Stay with FOX 11 News for the latest.
City News Service contributed to this report.