PURCELL, Okla. — 13-year-old Lizzie Edwards died Wednesday morning after she was taken off life support Tuesday.
The crash on I-35, near Purcell, also killed 11-year-old Beck Kitterman, 10-year-old Zach Van Horn and 40-year-old Erin Van Horn of Tulsa.
Trooper Dwight Durant says two other 13-year-old girls are hospitalized with injuries suffered in the crash.
The OHP says the seven were in an SUV driven by Van Horn when it crashed into the rear of a tractor-trailer rig on the interstate.
A 7-year-old girl was treated and released.
Durant says the semi was stopped in a construction zone at the time of the collision.