More than 160 people are still believed to be missing in Texas days after flash floods killed over 100 people during the July Fourth weekend, the state’s governor said Tuesday.

Rescuers searched the Guadalupe River for survivors of the Texas floods that killed more than 100 people over the July Fourth holiday weekend, with an unknown number of people still missing. The basin area was crowded with families and campers preparing to enjoy the holiday when pounding rain brought about catastrophic flash floods just before dawn Friday.