Camp Mystic, on the banks of the Guadalupe River in Hunt, Texas, has been operated by generations of the same family since the 1930s.

Texas parents are frantically posting photos of their daughters and pleas for information as more than 20 campers from an all-girls summer camp remain missing after floods tore through the state’s south-central region.

Authorities said at least 24 people have died in flooding around Kerr County, Texas, and officials are still performing water rescues.