Kansas Highway Patrol Trooper Ben Gardner said the accident happened on US-77/US-56 about two miles south of Herington shortly before 12:30 p.m. Friday. Gardner said the crash involved two vehicles, a semi-tractor trailer and passenger car. The driver of the car was pronounced dead at the scene. Gardner said the car was heading north when for an unknown reason slid into the southbound lanes. The semi’s driver attempted to avoid the car but crashed into the car’s driver’s side door. Gardner said he expects US-77 to be reopened by 6 p.m. Friday at the earliest. The cause of the crash is under investigation.