Operations have resumed at Naval Base Ventura County Port Hueneme on Tuesday after a report of "an act of violence" prompted a lockdown.
The base said in an updated post on Facebook that the report was found to be false.
Naval Base Ventura County is in Oxnard, California, about 60 miles northwest of Los Angeles.
Newsweek reached out to Naval Base Ventura County by email on Tuesday for more information.
The incident occurred amid ongoing concerns about security at U.S. military installations, with initial reports of violence drawing immediate attention from both military personnel and the surrounding community.
Operations at Naval Base Ventura County contribute to both national security and the regional economy, further heightening the significance of any disruption due to security incidents.
The 'all clear' returned the base to normal operations, but not before serving as a reminder of the importance of vigilance and effective response protocols in military environments.
Naval Base Ventura County at Port Hueneme entered a lockdown on Tuesday morning following a report of an 'act of violence' at the base medical clinic.
The base's official Facebook page instructed all personnel to shelter in place and activate lockdown procedures until further notice.
Shortly after, the official Naval Base Ventura County Facebook page posted that there was "ALL CLEAR FROM REPORT OF ACTIVE THREAT" and stated, “There is no active shooter onboard NBVC Port Hueneme. Force Protection has determined that the report was false. All gates are now open.”
Naval Base Ventura County supports multiple missions, including logistics and training, and employs thousands of service members and civilian personnel.
Although local outlet KEYT initially reported the event as a possible active shooter incident, officials later verified that the threat did not exist, and there were no reported injuries or fatalities.
Naval Base Ventura County said on Facebook Tuesday: “ALL CLEAR FROM REPORT OF ACTIVE THREAT. There is no active shooter onboard NBVC Port Hueneme. Force Protection has determined that the report was false. All gates are now open.”
Naval Base Ventura County said in the initial safety alert on Facebook Tuesday morning: “Due to a report of an act of violence onboard NBVC Port Hueneme Medical Clinic all personnel are directed to seek shelter in the nearest building and activate lockdown plans until further notice!!”
With the 'all clear' now issued, base operations resumed at Port Hueneme, and all access points were reopened.
Navy officials have not indicated whether an investigation will follow regarding the source of the initial false report.
Update 1/6/26 1:33 p.m. ET: This story has been updated with more information.