A woman was killed and nine other people were injured a crash involving an overturned truck on the 5 Freeway in Castaic on Sunday.
The crash on the northbound 5 Freeway near Lake Hughes Road was reported around 2 p.m., according to the California Highway Patrol.
All northbound lanes were reopened after the crash shut down two lanes for hours.
Details of the crash were not being released.
The woman was pronounced dead at the scene.
An overturned truck blocked lanes after the collision involving three other vehicles.
A SigAlert was issued and the two right lanes of the freeway were expected to be closed for at least three hours for the crash investigation.