The declaration will ensure federal resources are made available to those impacted by the catastrophic flooding.

The declaration will make federal resources available to individuals seeking housing and home repairs and to governments and nonprofits doing emergency work.

At least 24 people are dead after heavy rain lashed Texas, leading to "catastrophic" flooding. Texas Gov. Greg Abbott said emergency responders remained in a search and rescue posture, hours after the flooding along the Guadalupe River inundated nearby areas.