Five people died Monday after an active shooter opened fire inside the Islamic Center of San Diego [1].

The attack marks a violent breach of a religious sanctuary, raising immediate concerns regarding the safety of faith-based communities in the U.S.

Authorities reported that the shooting occurred before noon on May 18, 2026 [2]. Among the deceased are three adult victims, including two staff members and a security guard [3]. Two gunmen were also killed during the incident [1].

Police have not released a motive for the attack, and the incident remains under active investigation [2]. The gunmen's deaths are a point of inquiry, as some reports suggest they may have killed themselves while others attribute the deaths to the police response [4].

Law enforcement secured the scene and confirmed that the danger had passed. "There is no further threat to the public," a San Diego Police Department spokesperson said [3].

The Islamic Center of San Diego serves as a focal point for the local Muslim community. The loss of staff and security personnel highlights the vulnerability of the facility's internal protections during the attack [3].

Investigators are processing evidence from the scene to determine how the two suspects entered the building and whether they acted in coordination with others [2].

Five people died Monday after an active shooter opened fire inside the Islamic Center of San Diego

This incident underscores the persistent risk of targeted violence against religious institutions in the U.S. The death of a security guard suggests that even with dedicated protection, faith-based centers remain susceptible to high-casualty attacks, likely prompting a review of security protocols for mosques and similar houses of worship nationwide.