Chloe Childress, a counselor at Camp Mystic, died during the flooding in Hunt, Texas, according to a representative of her high school.

On its website Monday morning, the all-girls camp said “our hearts are broken alongside our families that are enduring this unimaginable tragedy.”

Kerr County, Texas and national search and rescue operations will continue Monday around the Guadalupe River, where families wait for news of their loved ones.