Transcript for Deadly Carnival Accident Raises New Questions Over Ride Safety
Saturday, organizers ending the demonstrations today. And now to the details on the deadly carnival accident in Texas. Witnesses claiming the seat belts unbecuckled. Here's Mary Bruce on the investigation. Reporter: Tonight Texas police are investigating how a turn on this popular ride led to the death of this 16-year-old girl. This is not something you ever think is going to happen. Reporter: Police say Samantha Aguilar died after she was thrown from this whirling ride at an El Paso carnival, and slammed into a metal barricade. Her friend, also ejected from her seat, tonight is recovering from a head injury. A third girl was unharmed, only after clinging desperately to the lap bar. Carnival rides in Texas are inspected by the state once a year, and overseen by the federal government. A police spokesperson tells ABC news, there were seatbelts and that safety bar, but they don't know if they were functioning or used. I don't foresee them finding anything criminal at all in this and it most likely will come down to either one of two things, a human factor or a mechanical malfunction. Reporter: This on the heels of another scare at an amusement park in Texas. This dad, recording on a roller coaster when his 6-year-old son's seatbelt fails. You're fine. I promise, okay? Reporter: His father holding him tightly, the little boy shaken, but safe. As investigators look into this this weekend's tragedy, that carnival tonight remains closed. We've reached out to the owners, but they are not commenting. Tom? Mary, thank you.
This transcript has been automatically generated and may not be 100% accurate.