Authorities on Sunday were in a desperate search to find those still missing after historic flash floods swept across central Texas — including 10 children from a beloved all-girls camp — as the death toll rose and forecasters warned of more rain.

At least 68 deaths—including the deaths of 21 children—have now been confirmed in the central Texas flash floods, according to the latest update from officials, though dozens of children from a summer camp remain unaccounted for as blame swirls over preparedness and whether residents were properly alerted.