Kerrville, Texas — Rescuers scoured a devastated central Texas landscape of mangled trees, overturned cars and muck-filled debris Saturday in an increasingly bleak mission to locate survivors, including 27 girls who have not been seen since their camp was slammed with a wall of water in a historic flash flood.

Rescuers continue to search for an estimated 20 girls who were at Camp Mystic in Hunt, Texas when deadly floods from the Guadalupe River swept through the camp.