Flash floods in Texas killed at least 110 people over the Fourth of July holiday weekend and left others still missing, including girls attending a summer camp.

There are questions over why oversight was eased at Mystic Camp as it expanded in a hazardous floodplain, the AP reported.

Within six years of opening, Camp Mystic was inundated with floodwaters.

Federal regulators repeatedly granted appeals to remove Camp Mystic’s buildings from their 100-year flood map, loosening oversight as the camp operated and expanded in a dangerous flood plain in the y...