A head-on collision in Boone County sent both drivers to the hospital Wednesday night. According to the Highway Patrol, Francis Muiruri, 35, of Columbia traveled into the Southbound lane of Route K near Azoros Drive and struck Southbound Heidi Saylor, 29, of Columbia head-on. Saylor received moderate injuries and was transported to University Hospital. Muiruri received minor injuries and was taken by private vehicle to University Hospital for treatment.