UCI Health - Los Alamitos medical center on lockdown amid massive police response

July 22, 2026 - 18:01

A medical center in Los Alamitos was placed under lockdown Wednesday morning as a large police response unfolded at the facility. Authorities swarmed the UCI Health campus, though specific details about the incident remain limited.

Officers from multiple agencies responded to the scene, with reports indicating a significant law enforcement presence around the hospital grounds. The lockdown was initiated as a precautionary measure, and hospital staff were instructed to secure all entrances and remain inside.

Witnesses described seeing numerous patrol vehicles and tactical units arriving at the location. Some nearby roads were closed to traffic, and pedestrians were asked to avoid the area.

Hospital officials confirmed the lockdown but did not immediately provide details on the nature of the threat or the reason for the police response. Patients and visitors inside the facility were told to shelter in place while officers conducted their operations.

The situation remained active as of Wednesday morning. Authorities have not released any information about injuries, arrests, or whether a suspect is involved. The lockdown is expected to remain in effect until police determine the area is safe.