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.

Search and rescue efforts continued overnight in Texas for the dozens of people still missing from the devastating flash floods that have killed more than 100 people. Meanwhile, the Texas flood alert system is facing scrutiny over how much warning locals were given ahead of the flash floods.

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.

In a social media post Monday, the Austin Firefighters Association blasted Fire Chief Joel Baker for waiting to send local firefighters to Kerr County to help with flood response.

As of Sunday, at least 38 adults and 21 children have been confirmed dead in Kerr County, with additional deaths reported in nearby counties. Eleven girls and a counselor from the all-girls Camp Mystic, a beloved summer spot of many D-FW area children for nearly a century, remain missing.