Surviving campers sang hymns as they drove past the damage left by the floods. Days earlier, they were having fun and playing games at the all-girls Christian summer camp.

A spokesperson for the Texas Christian sleepaway camp, Camp Mystic, has released a statement saying that the camp director may not have seen an important alert from the National Weather Service moments before the flood occurred.

The leader of Camp Mystic had been tracking the weather before the deadly Texas floods, but it is now unclear whether he saw an urgent warning from the National Weather Service that had triggered an emergency alert to phones in the area,