UPDATE (6:05 p.m.) - The California Highway Patrol has identified the alleged driver of a jeep they say was stolen as Michael Culligan, 29, of Lompoc.
Officers say he was found 1.5 miles from the crash site about three hours after the collision occurred.
The driver of the Lexus who died is reportedly a 35-year-old man from Santa Maria. His passenger has been identified as a 37-year-old woman from Santa Maria.
Because the crash happened on base property, CHP says Culligan, who was checked out on scene by medics, is in federal custody.
Officers say drugs are suspected as a factor in the crash, which CHP says occurred when Culligan crossed into oncoming traffic.
UPDATE (3:04 p.m.) - The Santa Barbara County Sheriff's Office reports that the driver was tracked down with the help of a K9 and has been arrested.
UPDATE (2:12 p.m.) - The California Highway Patrol says the search is on for a driver believed to have caused a deadly crash outside Lompoc Tuesday afternoon.
It happened at about 12:22 p.m. on Santa Lucia Canyon Road and Victory Road, which is between the Lompoc Federal Prison and Vandenberg Air Force Base.
Officers said the head-on crash between a Jeep and Lexus sedan happened when preliminary reports show the driver of the Jeep crossed into the opposite lane.
The driver of the Lexus was killed in the crash and the passenger suffered major injuries and was airlifted to the hospital, according to CHP.
A helicopter is being used in the search for the alleged driver, who officers say ran from the scene.
No other information was immediately available but Vandenberg police have closed Santa Lucia Canyon Road at the Lompoc gate to Vandenberg Air Force Base.
(1:29 p.m.) - At least one person was killed in a crash on Santa Lucia Canyon Road outside Lompoc Tuesday, officers confirm to KSBY News.
According to the California Highway Patrol, it happened at about 12:22 p.m. on Santa Lucia Canyon Road and Victory Road, which is between the Lompoc Federal Prison and Vandenberg Air Force Base.
Initial reports into the California Highway Patrol were that two vehicles were involved and one person had died.
A helicopter is also reportedly in the area, but it's unclear what they are looking for.
This is a developing story and will be updated as information becomes available.