Officer-involved shooting at Thousand Oaks hospital prompts massive response from law enforcement

THOUSAND OAKS, Calif. (KABC) -- A shooting involving a law-enforcement officer occurred Thursday afternoon at a hospital in Thousand Oaks, but whether anyone was struck by gunfire was unclear.

Few details were immediately available about the shooting, which happened at Los Robles Regional Medical Center near the intersection of Janns and Lynn roads.

Spokespersons for the Simi Valley Police Department and Ventura County Sheriff's Office confirmed that both agencies responded to the scene.

Whether it was an officer, deputy, or suspect who opened fire was unknown.

DEVELOPING: More details will be added to this report as they become available.