UPDATE 1/26/16 @ 1:33 p.m.
SAN DIEGO, Ca. (WSAZ) -- In a press conference Tuesday, officials said after an initial sweep of the Naval Medical Center, they have not found any evidence of an active shooter.
Officials have been on scene for more than two hours after reports of an active shooter on the campus.
There were reports of three gunshots fired in the basement of building #26, which houses a gym and barracks.
Captain Curt Jones with the Navy says they will continue to investigate and are still going through the building looking for evidence.
He says at this time, there is nothing to indicate a dangerous situation.
They have started letting people leave the buildings.
Officials say they have had several training scenarios to be ready if something like this ever happened.
UPDATE 1/26/16 @ 1:12 P.M.
SAN DIEGO, Ca. (WSAZ/NBC San Diego) -- The Naval Medical Center in San Diego is on lockdown after reports of three shots being fired.
Officials say there were reports of shots fired in the basement of a building that houses a gym and barracks, according to the Navy.
The report came in just before 8:10 a.m. Tuesday.
A post was put on the facility's Facebook page, warning all occupants of building #26 to "run, hide or fight."
Officials from the facility released the following statement:
"The sound of gunshots were reported in the basement of building #26 at Naval Medical Center San Diego at about 8 a.m. today. Naval Medical Center San Diego is treating this as a possible active shooter. All personnel are advised to execute active shooter procedures. Non-emergency response personnel are asked to stay away from the compound. San Diego Police Department and Chula Vista S.W.A.T. are on scene at building #26. More information will be provided as it becomes available."
Investigators are going room-by-room, evacuating the building.
Several crews are on scene.
No other details have been released.
Keep clicking on WSAZ Mobile and WSAZ.com for the latest on this story.
SAN DIEGO, Ca. (WSAZ/NBC) -- There may be an active shooter at the Naval Medical Center in San Diego, according to the center's Facebook page.
Shortly after 8 a.m. Pacific Time, this post appeared on its Facebook page: "An active shooter has just been been reported in building #26 at Naval Medical Center San Diego. All occupants are advised to run, hide or fight. All non-emergency response personnel are asked to stay away from the compound."
Another post said the medical center was "secured," and that "all children in childcare facilities at the medical center were "accounted for and safe."
A law enforcement official told NBC News that Navy personnel were going room-to-room after getting reports of three shots fired. There were no immediate reports of any injuries.
Check back to WSAZ Mobile and WSAZ.com for updates.