The head of FEMA's Urban Search and Rescue branch, Ken Pagurek, resigned on Monday, multiple sources confirmed to ABC News.

Ken Pagurek, the Federal Emergency Management Agency's Urban Search and Rescue chief, has resigned amid criticism over the agency's delayed response to Texas flooding and efforts by the federal government to dismantle the organization.

Response to the Hill Country floods is the top priority for a special session of the Texas Legislature. Lawmakers have already filed more than a dozen bills.

The decision was likely in part due to the agency's delayed response to the flooding disaster in Central Texas. Senior FEMA leader Ken Pagurek told colleagues this was the last straw after months of frustration over President Donald Trump's repeated efforts to eliminate the agency, CNN reported.

The flood disaster that struck Texas over Independence Day weekend was beyond the state’s ability to predict or fully manage, the state emergency management chief told the legislature on

The head of FEMA’s Urban Search and Rescue branch, which runs a network of teams stationed across the country that can swiftly respond to natural disasters, resigned on Monday.

Texas and the Czech Republic have had a military relationship since 1993 as part of the National Guard Bureau's State Partnership Program pairing states to train with countries around the world.

National TV news coverage of the catastrophic Texas floods evolved from real-time reporting during the immediate aftermath of the disaster on July 4 to sustained scrutiny of the litany of failures that worsened the crisis.