Darke County Deputies responded with Tri-Village Rescue, Greenville Township Rescue and New Madison Fire to US Route 127 and State Route 722 in Castine just after 11:30 a.m. Monday. A black 2004 Honda Accord driven by Sharon K. Fourman, 64, of Greenville, was eastbound and failed to yield at a stop sign, striking a southbound semi driven by Jeffrey A. White, 53, of Lewisburg. The semi jackknifed, closing the road for several hours. Fourman was extricated and transported to Miami Valley Hospital, where she was listed in critical condition. Greenville City Fire also responded to assist with a diesel fuel clean up, and Ohio State Highway Patrol responded for a safety inspection of the semi. White was not injured. The accident remains under investigation by the Darke County Sheriff’s Office.