Sunday morning recovering efforts were suspended in Kerr County due to heavy rainfall and a new flash flood warning issued for the Hill Country.

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.

Animal rescue groups have found hundreds of pets in areas ravaged by flooding near the banks of the Guadalupe River last week. Animal shelters have filled with dogs and cats waiting to be reunited with their owners.

In a time of heartbreak and devastation, the community in Kerr County is coming together—and getting support from across the border.

ABC News Chief National Correspondent Matt Gutman is at one location along the Guadalupe River where officials are performing rescue and recovery missions.

Mexican firefighters trained in search and rescue have joined the efforts to find the victims of the tragic flooding in the battered Texas Hill Country.

Amid rescue efforts after massive flooding in Texas, ... as intense rainfall caused the Guadalupe River to surge more than 25 feet in an hour, Texas Lt. Gov. Dan Patrick said.