At approximately 11:56 a.m., officials with the Clay County Sheriff's Department responded to the scene, at the intersection of U.S. 40 and County Road 425 West.
According to information provided by CCSD Dep. John Tilley, Robert J. Bennett, 47, Brazil, was traveling west on U.S. 40, in a 2007 Chevrolet Silverado. Betty J. Wells, 80, also of Brazil, was traveling south on CR 425 W., in a 2007 Toyota Corolla, when she failed to yield the right of way and pulled out into the path of Bennett.
Wells had to be extricated from her vehicle and was then transported to Wishard Hospital, Indianapolis, via AirEvac. The extent of Wells' injuries were not known at press time.
Tilley said the woman was "coherent" at the scene.
Bennett and his passenger were treated and released from the scene by TransCare.
Members of the Posey Township Volunteer Fire Department were on the scene as well, routing traffic from U.S. 40 to State Road 340 and to clean up debris.
Other agencies responding included Clay County Search and Rescue.