A high school graduation celebration in Northern California turned tragic Wednesday night when gunfire broke out near the event venue, leaving one person dead and three others injured.

According to authorities, the shooting occurred shortly after the commencement ceremony for Sem Yeto High School, which was held at Schafer Stadium on the campus of Fairfield High School in Fairfield, California.

Witnesses reported that what had begun as a joyful evening of celebration quickly descended into chaos when shots rang out outside the stadium area. Graduates, family members, and guests who had gathered to mark the milestone were forced to react to the sudden violence.

Emergency responders rushed to the scene and provided medical assistance to multiple victims. Officials later confirmed that one individual died as a result of the shooting, while three others sustained injuries. The conditions of the injured victims have not been fully disclosed.

Law enforcement agencies immediately launched an investigation and began searching for the suspect responsible for the attack. As of the latest reports, no arrests had been announced, and authorities continue to work to determine the circumstances that led to the shooting.

Investigators are reviewing evidence from the scene, including witness statements and any available surveillance footage, as they seek to identify the gunman and establish a motive.

The tragedy has shocked the local community, particularly because it occurred during an event intended to celebrate the achievements of graduating students and their families.

School officials and community leaders expressed condolences to those affected and pledged cooperation with law enforcement as the investigation continues.

Authorities are urging anyone with information related to the shooting to come forward, emphasizing that public assistance could prove critical in locating the suspect.

As the community mourns the loss of life and supports those injured, the search for answers—and for the person responsible—remains ongoing.