A pedestrian died Friday morning after being hit by a car on Interstate 5 in Chula Vista, the California Highway Patrol said.
The CHP said the pedestrian, a 48-year-old man from Fountain Valley, appeared to have been walking along north I-5 near east state Route 54 at around 3:30 a.m. when he was hit by a passing driver.
The reasons the driver was in traffic lanes are still under investigation. CHP said investigators are also conducting toxicology reports for the pedestrian to determine if he may have been under the influence of drugs or alcohol.
The driver remained at the scene.
Get San Diego local news, weather forecasts, sports and lifestyle stories to your inbox. Sign up for NBC San Diego newsletters.
Several lanes of north I-5 near E Street were blocked off to traffic while officials surveyed the scene. About an hour later, traffic was moving through the area, but slowly.
By around 6:15 a.m., the CHP said the area would remain blocked off to traffic for at least another hour.
No further details were immediately released.