SAN MARCOS–A vehicle rollover collision in San Marcos Sunday cost the life of one man, San Diego Sheriff’s Department said.

The collision was reported just before 8 a.m. off a hillside northwest of the intersection of Borden Road and Bel Esprit Circle.

A male occupant of the involved Chevrolet truck called 911 to report the vehicle’s male driver was injured and trapped inside the vehicle. San Marcos Fire and Paramedic units arrived on scene and located the vehicle. Due to its remote location, emergency units utilized the hiking trails to access the heavily damaged Chevrolet and the injured vehicle occupants. Paramedics were able to extricate the 25-year-old male driver from the vehicle. Passengers in the Chevrolet consisted of three 25 to 26 year old males.

All occupants were transported by paramedics to Palomar Medical Center where the 25-year- male driver later succumbed to his injuries. All remaining occupants sustained moderate yet non-life-threatening injuries.

Alcohol is suspected to be a factor in this collision.