OAKLAND, Calif. --Oakland police investigated a serious threat Tuesday that prompted the closure of two Kaiser Permanente buildings in Oakland. The two facilities are office buildings at 3600 and 3701 Broadway.
Hospital officials say the closure affected offices, clinics, laboratories, and pharmacies as well as the parking garages adjacent to the two buildings. The closures did not affect the Kaiser Permanente hospital or emergency room.
The hospital cooperated with Oakland police for what they called a potential security issue.
A hospital spokesperson tells ABC7 News that there was a "specific and credible criminal threat" against Kaiser in Oakland. That prompted an increased police presence to two of their medical buildings.
Oakland police have not specified what the actual threat was or continues to be. But they did say they are working with the hospital to investigate.
Officials with Kaiser said they contacted staff and patients about the closure.
The buildings reopened around 12:15.
(ABC7 News reporter Nick Smith has contributed to this report)