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.

Texas parents frantically posted photos of their young daughters on social media with pleas for information as at least 23 campers from an all-girls summer camp were unaccounted for after floods tore through the state’s south-central region overnight.

Texas was gripped by tragedy on Friday after a deluge of rain fell within hours, triggering devastating flash floods.