Cybil Nelson, 35, and Martha Carriedo, 60, killed on head-on crash on Highway 97 near Klamath Falls, Oregon

Investigators said at about 12:35 a.m. Friday, a southbound GMC truck driven by a 36-year-old person from Yuba City, California, was traveling on Highway 97 north of Klamath Falls when it collided head-on with a northbound Nissan Xterra driven by 35-year-old Cybil Nelson of Bend.