By the edhat staff
A fatal vehicle crash on Highway 154 Thursday afternoon may have been caused by a medical event, according to the Santa Barbara County Fire Department (SBCFD).
A Chevy pickup truck was driving west on Highway 154, just east of Zaca Station Road in the Santa Ynez Valley, when it went off the roadway and overturned.
Firefighters and paramedics arrived on the scene around 3:20 p.m. and worked extensively on the male drive and single occupant of the vehicle.
He was pronounced dead at the scene and crews believe he may have suffered a medical emergency while driving.
This is a developing story.