Heavy rains in Central Texas are complicating the recovery mission in the state’s Hill Country, just over one week after catastrophic flooding killed at least 120 people. NBC News’ Ryan Chander reports from hard-hit Kerr County.

More than two dozen Mexican rescue volunteers and firefighters have been looking for victims and clearing debris along the Guadalupe River. Others were left waiting for visas and humanitarian permits to cross the border.

At least 161 are still unaccounted for after the July Fourth floods that saw the waters of the Guadalupe rise to historic levels in Central Texas, officials with Kerr County said Friday. Authorities have confirmed 103 deaths, 36 of whom are children.

Search crews continued the grueling task of recovering the missing as more potential flash flooding threatened Texas Hill Country.

In the last nine years, federal funding for a system has been denied to the county as it contends with a tax base hostile to government overspending.

The number of people reported missing in Kerr County, Texas, as a result of last week’s flash floods continues to soar. Authorities say search teams combing through the debris and destruction there are looking for more than 160 people who disappeared in the raging waters.

A Kerrville-area river authority executed a contract for a flood warning system that would have been used to help with emergency response, local officials said.

KERRVILLE, Texas (AP) — More heavy rains in Texas on Sunday temporarily paused a weeklong search for victims of catastrophic flooding along the Guadalupe River and led to high-water rescues elsewhere as officials warned that the downpours could again cause waterways to surge.

Kerr County failed to secure a warning system, even as local officials remained aware of the risks and as billions of dollars were available for similar projects.