The death toll from catastrophic flooding in Texas over the July Fourth weekend has surpassed 100 as the massive search continues for missing people.

The search for unlikely survivors grew more desperate four days after one of the deadliest U.S. floods in decades. Ten campers and a counselor are among those still missing.

In the Hill Country area, home to Camp Mystic and several other summer camps, searchers have found the bodies of 75 people, including 27 children, Kerr County Sheriff Larry Leitha said. Twelve other deaths were reported in Travis, Burnet, Kendall, Tom Green and Williamson counties, according to local officials.