Traffic was backed up on the northbound Interstate 15 in the Tierrasanta area Wednesday afternoon after a pedestrian was struck and killed by a vehicle.
CHP said they were called to a report of a pedestrian who was in traffic lanes near Aero Drive at about 1:45 p.m. When they arrived, they determined the pedestrian had been struck by a 33-year-old driver from Chula Vista.
The pedestrian died at the scene. The man has only been identified as a 28-year-old San Diegan.
It was not immediately clear why the person was on foot on the freeway. CHP said a toxicology report is pending to determine if alcohol or drugs may have been a factor. The driver was cooperating with their investigation, the agency said.
Get top local stories in San Diego delivered to you every morning. Sign up for NBC San Diego's News Headlines newsletter.
Drivers were expecting delays up to an hour, according to SigAlert. The investigation into the crash blocked several lanes, causing a backup in northbound lanes as far south as the I-805 transition ramps. There was also traffic on Friars Road and westbound I-8 east, although it was not known if that was due to the crash.
By 5:18 p.m., all the lanes were back open, according to Caltrans San Diego.
Local
This is a developing story. Details may change as information is released.