At least 81 people are dead and at least 41 more are missing after devastating flash floods slammed Texas Hill Country, with water rescues taking place along the Guadalupe River, which rose rapidly early Friday morning to the height of a two-story building.

At least 51 people, including 15 children, were killed, with most of the deaths coming in Kerr County in the state’s Hill Country.

The death toll from flash floods rose to nearly 70 on Sunday after searchers found more more bodies in the hardest-hit Kerr County.