AMERICUS, Kan. (AP) -- Two Kansas teenagers were killed and two others were injured in a traffic accident in Lyon County.

The Kansas Highway Patrol says 17-year-old Joanna Posey and 16-year-old Cassidy Hart, both of Americus, died after the accident Wednesday about 1 1/2 miles north of Americus.

The patrol says Posey over-corrected when her car went off a Lyon County road and the car went into the path of a pickup truck driven by 80-year-old Andrew Blythe of Council Grove.

KVOE reports that Posey died at the scene and Hart died later at Newman Regional Health. Two other students from Americus were injured. The four teenagers were students at Northern Heights High School.

Blythe and a passenger in his truck were treated and released.