Amy Howard, 33, was taken by helicopter to Grant Medical Center Friday evening after the Ohio State Highway Patrol says she failed to yield at a stop sign at the intersection of Marion-Cardington and Smeltzer roads. She continued through the intersection and drove into the path of a Stofcheck Ambulance driven by Aaron Keller.

Keller and a passenger, 63-year-old Robert Van Meter were treated and released at Marion General Hospital.