LAWTON,Okla_A chain reaction crash involving a semi Tuesday in Stephens County sent three people to the hospital.
The highway patrol said the truck was behind two cars on state Hwy 7. The lead car was having mechanical trouble, so the car behind it was traveling at a low speed with its emergency flashers on.
The truck rear ended that car, which then hit the first car. The impact also left the truck on its side.
The truck driver, the driver of the trailing car and a passenger in the first car were taken to the hospital. The woman driving the car is the only one still in the hospital Tuesday night, in good condition.