A traffic collision involving a school bus yesterday afternoon resulted in a 72-year-old Ashland woman being seriously injured. Police say Sylvia Horton was traveling northbound on Highway 99 between Phoenix and Talent when she apparently collided into the back of the school bus which was stopped in the right lane with it's red lights flashing. None of the two dozen Phoenix Elementary School kids onboard were injured. Horton was transported to the hospital with non-life-threatening injuries. Police say the woman could be cited.