A northbound train struck and killed an adult man on the Caltrain tracks in Sunnyvale, Caltrain officials said Sunday afternoon.
The person was struck by the #439 train at 4:15 p.m., Caltrain spokeswoman Christine Dunn said.
There were 75 passenger on board at the time and none was hurt.
Trains stopped for a time, but thanks to special trains people were back on their way by 5:30 p.m.
Caltrain said this is the second fatality of the year. There were 16 fatalities in 2011.
The person was not immediately identified.
The Caltrain statement also read: "Although the facts are not yet certain, preliminary information suggests the person may have intentionally placed himself in the path of the oncoming train."
Bay City News contributed to this report.