At least 12 people were injured when a passenger van rolled over on the 101 Freeway in Thousand Oaks on Thursday.
The crash happened near the Lynn Road offramp at about 2 p.m., according to Rich Macklin of the Ventura County Fire Department.
Five or six patients suffered moderate injuries in the crash. All of the other injuries were minor, according to Macklin.
Two fire engines and seven ambulances were called to the scene.
Traffic in the area was backed up for several miles due to the crash, aerial video from Sky5 showed.