The Oklahoma Highway Patrol says three people were injured when two vehicles collided Friday on SH 18B at County Road 3460.

The Oklahoma Highway Patrol says three people were injured when two vehicles collided Friday on SH 18B at County Road 3460.

The accident occurred about 1:51 p.m. about two miles southwest of Sparks.

Troopers said a 2008 Nissan Sentra driven by a 17-year-old female whose name was withheld, was northbound on CR 3460.

The teen driver failed to yield from a stop sign, the OHP said, causing an eastbound 2010 Freightliner Sprinter to collide with the driver's side of the Nissan.

The teen was extricated from the wreckage by Chandler firefighters using the Hallagin Tool and Jaws of Life. She was taken by Medi Flight helicopter to OU Medical Center in Oklahoma City, where she was admitted in critical condition with head, internal trunk and external trunk injuries, as well as leg injuries, the patrol said.

The driver of the Freightliner, JL Gilbert, 70, Sparks, also was transported from the scene by Medi Flight helicopter to OU Medical Center, where he was admitted in good condition with internal and external trunk injuries.

His passenger, I-na Chao, 68, Sparks, was taken by Chandler EMS to SSM Health St. Anthony Hospital – Shawnee, where she was treated for arm injuries and then released.

Cause of the collision was failure to stop from a stop sign, the OHP said. Seat belts were equipped and in use by all, the patrol noted.

The accident was investigated by Trooper Adam Post of the Lincoln County detachment of Troop A, and he was assisted by several troopers at he scene, along with Lincoln County Sheriff's Office, Sparks Volunteer Fire Department, Chandler EMS and Medi Flight.