The death toll from catastrophic floods in Texas reached at least 78 on Sunday, including 28 children, as the search for girls missing from a summer camp continued and fears of more flooding prompted evacuations of volunteer responders.

The declaration activates FEMA resources for the area, which is still searching for many missing, including 10 girls and one counselor from Camp Mystic. President Trump says he will "probably" visit Texas later this week as the state deals with devastating deadly flooding.