BOONE COUNTY, Mo.— Two Columbia women recover from critical injuries following a wrong-way accident Sunday in Boone County.

According highway patrol, the vehicle driven by Sara E. McCahon halted at the bottom of the eastbound I-70 exit ramp. McCahon then drove west in the eastbound lanes where her vehicle collided head-on with the Volvo tractor operated by Howard Salickram, of Florida. An ambulance took McCahon and her passenger, Elizabeth A. McCarthy, to a hospital. Troop F lists no injuries for Salickram.