A new investigation reveals severe injuries to two women who rode a certain roller coaster. They suffered brain injuries that were life-threatening. These incidents happened on a coaster known for intense thrills, featuring independently rotating seats.

The coaster is at a theme park in Valencia, California. Details about the incidents are available from the source, including the story of a 40-year-old woman who visited the park with her family. Further information about the incidents, including the timing and specifics of the injuries, can be found through the investigation reported by CNN.