The death toll from the July Fourth flash flood that ravaged a swath of central Texas Hill Country rose on Tuesday to at least 109, many of them children, as search teams pressed on through mounds of mud-encrusted debris for scores of people still missing.

First responders struggled with difficult terrain as they continued search and recovery efforts. Officials have confirmed at least 106 people died in the Hill Country region, including 30 children and 56 adults in Kerr County.