Kerr County Judge Rob Kelly, the county’s top official, said during a county commissioners court meeting earlier Monday that local officials don’t know the exact number of how many visitors who traveled to the Guadalupe for the holiday weekend had been caught in the flood.

Commissioners in Kerr County, Texas, are set to meet Monday in their first official court hearing since more than 100 people, including children and counselors at a summer camp, were killed in catastrophic flooding last week.