The deadly floods that struck Texas on the 4th of July caught local officials off guard as the torrential rains caused the Guadalupe River to rise to near-historic levels in a matter of minutes, officials said at a press conference Saturday.

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.