OKLAHOMA CITY - Emergency crews responded to a three-vehicle injury crash Tuesday evening on the Kilpatrick Turnpike at State Highway 66 in Oklahoma City.

According to the Oklahoma Highway Patrol, EMSA took three people to a local hospital and one other person was taken to the hospital via medical helicopter.

The roadway was closed for about an hour as crews worked the scene. 

About 8:30 p.m., a 17-year-old boy from Yukon was driving southbound on the Kilpatrick Turnpike when for unknown reasons he hit the rear end of one vehicle before crossing a median into northbound lanes of the turnpike and striking another car, troopers said. 

According to OHP, the drivers and passengers in all cars are in stable condition except for the driver of the second car that was hit.

The driver of the second vehicle, Tamara Kay Turner, 59, is in critical condition, troopers said.

The cause of the crash is still under investigation. 

Stay with News 9 and News9.com for more information as it becomes available.