Two sisters from Dallas — 13-year-old Blair Harber and 11-year-old Brooke Harber — were among the dozens of lives lost in the catastrophic floods that swept through Central Texas early Friday.

As first responders continue to rescue people stranded by the torrential flooding that descended on central Texas Friday, dozens of people are facing a parent’s worst nightmare: Their children are missing.

Texas Gov. Greg Abbott signed an expanded emergency declaration that added Texas counties impacted by the disastrous flooding. The new declaration now includes Bexar, Burnet, Caldwell, Guadalupe, Travis and Williamson counties, Abbott said at a press conference Saturday afternoon.