The authorities in Santa Clara County, Calif., responded to the shooting, which took place a transportation facility. It was not immediately clear whether there were injuries.
The authorities in San Jose, Calif., are investigating a shooting at a rail yard that was reported on Wednesday morning, law enforcement officials said, but the extent of the injuries was not immediately clear.
Sgt. Russell Davis, a spokesman for the Santa Clara County Sheriff’s Office, said law enforcement officials were involved in an “active shooter investigation” at 101 West Younger Avenue.
The San Jose Mercury News reported that “multiple people” were dead at the site, including the shooter. Sergeant Davis said he could not confirm that there were casualties.
Brandi Childress, a spokeswoman for the Santa Clara Valley Transportation Authority, said she was informed at 6:45 a.m. local time that there was an “active shooter event,” and that employees were on the job at that time.
“It is where we have dispatchers and maintenance,” she said. “They get up early and they are there. That is why the focus is on containing and evacuating employees. It is where we store and maintain all of our trains.”
The mayor of San Jose, Sam Liccardo, said on Twitter that the shooting “has left several people being treated, but the situation is still being assessed.”
“The shooter is no longer a threat,” he added, “and the facility has been evacuated.”
This is a developing story.