The FBI says an attack at Travis Air Force base this week has no known "nexus to terrorism."
FBI Special Agent in Charge Sean Ragan on Friday said a van that illegally entered the base in Solano County, California, on Wednesday was on fire as it approached the gate of the base, then veered away and crashed. He says the driver was dead when authorities reached the wreck.
The vehicle was loaded with five propane tanks and three gasoline cans. The man had three cellphones.
Ragan identified the driver as 51-year-old Hafiz Kazi, most recently of San Francisco, though investigators aren't sure where he was living before Wednesday's incident.
He says investigators aren't sure why Kazi came to the air base or why he lit the Kia van on fire. He says investigators have had trouble locating family of Kazi, who was originally from India but has lived in the United States since 1993.