Reports of shot fired in Yountville, California; witnesses say suspect is armed with military-style weapon and possibly wearing body armor.
An armed man took three hostages during an "active shooter situation" at a California veterans home Friday afternoon, a fire official said.
Earlier, it emerged that the veterans home, described as the nation's largest, was on lockdown after reports of shots fired.
FBI officials are enroute to the scene, KTVU reported, and are enlisting a SWAT team to negotiate with the gunman.
The Napa County Sheriff’s Office said officers responded to the Veterans Home of California in Yountville and around 10:45 a.m. local time, a shelter-in-place order was issued, the Veterans Home told KRON4.
Between 15 to 20 shots went off at the facility, police said, according to KTVU.
California Highway Patrol Officer John Fransen told the outlet the property was evacuated after reports came in about an armed man on the grounds and law enforcement were working to build a secure perimeter.
"We do have an active shooter situation with a hostage situation in Yountville," Fransen told KTVU.
A number of ambulances, firetrucks and an armored police vehicle were seen at the property.
"Law enforcement is at the Yountville Veteran’s Home right now following reports of gunfire. The safety of our residents, workers and the community is our top priority," the veterans home said in a statement on Facebook. "We have activated our emergency response protocol and are cooperating with law enforcement. Further official information will be provided by law enforcement when it is confirmed."
The Napa Valley Register reported an armed gunman, dressed in black with body armor, entered the building.
The California Highway Patrol tweeted that they were aware of the incident and were working with officials to "bring the situation to a safe conclusion." The unit told Fox News that there were no confirmed injuries at this time.
According to California Department of Veterans Affairs, the Veterans Home of California in Yountville dates back to 1884 and is considered the largest veterans home in the U.S. with more than 1000 veterans from all wars dating back to World War II.
This is a breaking news story. Please check back for more information. The Associated Press contributed to this report.
Lucia I. Suarez Sang is a Reporter for FoxNews.com. Follow her on Twitter @luciasuarezsang
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