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NORTH HOLLYWOOD, Los Angeles County, CA, Sept. 21, 2026 — Multiple vehicles collided early Monday morning, September 21, on northbound State Route 170 near Roscoe Boulevard, according to the California Highway Patrol. At least one person was taken to a hospital, the agency said.
The California Highway Patrol said the crash was first reported as a two-vehicle collision blocking a carpool lane on NB SR-170 just south of Whitsett Avene. Early radio traffic described a white Infiniti sedan and a possible dark-colored SUV involved, along with a report of a black SUV and a white sedan. A pickup truck driver also reported spinning out nearby, according to the log, though it was not immediately clear if that vehicle was part of the same chain of impacts or a separate, related incident in the same stretch of freeway.
One caller asked for paramedics for a family member, reportedly his father, who was then transported by the Los Angeles Fire Department, dispatch records show. The extent of that person's injuries has not been released. No other injuries were confirmed as of Monday morning.
Officers worked to clear the number one lane and the carpool lane as vehicles were moved to the freeway shoulder, according to CHP logs. A rotation tow service was requested to remove at least one damaged vehicle, an Infiniti Q60, and after delays with two towing companies, a truck was dispatched to the scene.
The California Highway Patrol has not released the cause of the crash. The collision remains under investigation.
We hope those who were hurt recover fully and quickly.
Where Multi-Vehicle Pile-Ups on Freeways Tend to Start
Multi-vehicle collisions cluster in a handful of predictable settings: freeway segments with lane drops or merges, stretches near on-ramps where speed differentials are highest, and carpool lanes where a single lane split by a barrier gives drivers no room to escape sideways. Once one vehicle loses control or stops suddenly in one of these tight spaces, following vehicles have nowhere to go.
Nighttime hours add another layer. Traffic volume drops, visibility is lower, and there are many reckless drivers speeding. A vehicle stopped or spun out in a travel lane can go unnoticed by an approaching driver until it's too late to brake or steer around it, which is part of why late-night and early-morning freeway crashes so draw in a second or third vehicle.
According to the Insurance Institute for Highway Safety, 17,008 motor-vehicle crash deaths occurred outside passenger vehicles in crashes involving passenger vehicles in 2023. Freeway pile-ups are one setting where people outside a vehicle, including those who have pulled over or stepped out after an initial impact, face added risk from traffic still moving through the scene.
Frequently Asked Questions
Why does following distance matter so much on freeways?
Extra space gives a driver time to react if traffic ahead brakes hard or a vehicle spins out. On fast-moving freeways, even a second or two of extra following distance can be the difference between stopping in time and colliding.
Are secondary crashes common after an initial wreck?
Yes. Once a crash blocks a lane, approaching drivers often have little warning, especially at night, and a second or third vehicle striking the same scene is a frequent outcome until the lane is cleared or traffic is slowed.
What makes multi-vehicle crashes harder to investigate?
Investigators have to sort out the order of impacts, which vehicle struck which, and whether each collision was a direct result of the one before it. Conflicting witness accounts and vehicles that move before officers arrive can complicate that picture further.
What to Do After a Multi-Vehicle Crash in North Hollywood, CA
If you're involved in or come upon a multi-vehicle crash, try to move to the shoulder or a safe area away from moving traffic before exchanging information or checking on others. Call 911 and let dispatchers know how many vehicles are involved and whether anyone appears hurt, since that shapes how fire and ambulance crews respond.
Even if you feel fine, it's worth getting checked by a medical provider afterward. Impacts from a chain-reaction crash can cause injuries, like whiplash or internal bruising, that aren't obvious right away. Keep a copy of the CHP or police report once it's available, and photograph vehicle positions and damage if it's safe to do so before vehicles are towed.
