California Highway Patrol cruiser. Photo by Chris Stone
A California Highway Patrol cruiser. (File photo by Chris Stone/Times of San Diego)

A car struck and killed a pedestrian early Wednesday on Interstate 5 in Middletown, prompting an investigation into how the man ended up in the freeway lanes.

The incident occurred about 6:40 a.m., according to California Highway Patrol spokeswoman Kimberly Gonzalez. An unidentified male pedestrian was struck by a Toyota Prius on northbound I-5, south of Sassafras Street.

He was pronounced dead at the scene, she said. The driver of the Prius stopped and cooperated with investigators.

A toxicology report will be completed through the San Diego County Medical Examiner’s Office to determine whether drugs or alcohol played a role.

The man’s name was withheld pending family notification.

Anyone who witnessed this crash was asked by the CHP to call the San Diego area office at 858-293-6000.