A big-rig truck driver from San Bernardino died Tuesday morning when the rig he was driving on Interstate 5 left the roadway just south of Highway 58.

According to a news release from the Kern County Coroner's Office, Ernie Ray Patton, 56, died at 11:22 a.m. at the scene of the accident.

The California Highway Patrol is investigating the incident. An examination by the coroner's office is pending to determine cause of death.