Travelers driving in Mission Valley on Monday at lunchtime got snarled in a traffic mess.
All the northbound lanes of Interstate 15 near the Interstate 8 interchange were shut down after a pickup truck towing a trailer rolled over. The crash occurred at about 11:45 a.m. and took work crews more than an hour to clear.
Two people riding in the pickup truck were hospitalized after the crash.
Officials are still investigating the cause of the crash.