An Alabama elementary school student and twin girls from Dallas are among the more than 100 people who have died in the flash floods that rushed through central Texas.

Several children and one counselor from a summer camp remained missing as rescue crews continued searching for survivors of the floods that devastated Central Texas.

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.