Authorities overseeing the search for flood victims in Texas said they will wait to address questions about weather warnings and why some summer camps did not evacuate ahead of the catastrophic flooding.

More than 160 people are believed to be missing in Texas four days after flash floods killed over 100 people during the July Fourth weekend, Gov. Greg Abbott said Tuesday. Many of those who are not accounted for were staying in state’s Hill Country but did not register at a camp or hotel.