The Council Bluffs Police Department Monday afternoon, released the names of the persons who died and were injured in a crash Sunday evening on Interstate 80. Officials say 49-year-old Pamela Mahoney and 19-year-old Colene Mahoney, both of Carter Lake, were killed in the crash which occurred at around 6:15-p.m.

Officials say a pickup truck driven by 46-year old Scott Billings, of Omaha, was traveling west on I-80 when it traveled down an embankment and hit a Ford Escort driven by Pamela Mohoney, as she was traveling south on Interstate 29. Her car had just passed beneath the westbound I-80 overpass, when it was hit by the pickup. Pamela Mahoney died at the scene. Colene Mahoney was transported to the University of Nebraska Medical Center where she died from her injuries Monday morning.  Billings and his children, ages 4, 12 and 15, were taken to Mercy Hospital in Council Bluffs, where they were treated for non-life threatening injuries and released.

While the accident remains under investigation, officials say speed and alcohol did not appear to have been factors in the crash. Instead, officials suspect Billings fell asleep at the wheel of his pickup. No charges have been filed at this time.