The death toll from catastrophic floods in Texas reached at least 78 on Sunday, including at least 28 children, as the search for girls missing from a summer camp entered a third day and fears of more flash flooding as rain fell on saturated ground prompted fresh evacuations.

Although Kerr County was hit hardest by flooding, at least seven others have been confirmed dead in different parts of Texas. About 150 miles east of Camp Mystic, Travis County has confirmed at least four deaths, county spokesperson Hector Nieto told CBS News by phone Saturday night. Travis County includes the Texas capital city of Austin.

Searchers used helicopters, boats and drones to search for victims in flash floods that tore across Texas's Hill Country at the start of the Fourth of July weekend.

At least 27 people have died and more than 20 children are missing after a catastrophic flash flood in Texas. The Guadalupe River that runs through Hill Country in central south Texas rose by 26ft (8 metres) in just 45 minutes in the early hours of Friday,

Heavy rain poured over parts of central Texas, dumping more than a month's worth of rain for places like San Angelo, killing at least 27 people. Dangerous amounts of rain caused dangerous flash flooding in parts of Texas,