Brianna Paige Navarro, 18, and her brother, Charles Jesus Navarro, 13, were both killed in the collision. Neither was wearing seatbelts at the time of the collision.
A third occupant of the SUV, 2-year-old Casey Grace Jones, was transported to Throckmorton Memorial Hospital where she was treated and released.
The accident remains under investigation.
The following information was provided by the Texas Department of Transportation (TxDOT):