DUBLIN, CA --Reports of a possible gunman led to a lockdown at a U.S. Army Reserve training facility in Northern California on Tuesday as police search a residential area at the center, authorities said.
There were initial reports of a possible shooter at the Camp Parks Reserve Forces Training Area, but no one has been spotted and those reports have not been confirmed, Alameda County sheriff's Sgt. Ray Kelly said.
No gunshots have been heard. Multiple police agencies from areas east of San Francisco are searching the center.
"We heard a huge siren say, 'Everyone go into your house,'" said Ray Pauly, whose window overlooks the facility.
He said he didn't hear any gunshots, but authorities were lined up and down the street outside his home.
The Camp Parks Reserve Forces Training Area is a semi-active mobilization and training center for Army Reserve personnel.