SAN DIEGO—A FedEx truck driver pulled a man out of a burning vehicle on July 26 on southbound Interstate 15 in the Miramar area, authorities said.

A black sedan crashed into a guardrail at 2:55 a.m. Wednesday and burst into flames, the California Highway Patrol reported.

The FedEx driver stopped and rescued the sedan’s only occupant as it was burning.

The sedan driver was taken to a hospital with major injuries. The vehicle was fully engulfed in flames.

Highway patrol officers were investigating the cause of the crash.