PERRY, Fla. >> Authorities struggled to get water and other supplies to isolated, flood-stricken areas across the U.S. Southeast in the wake of Hurricane Helene as the death toll from the storm rose.

A North Carolina county that includes the mountain city of Asheville reported 30 people killed due to the storm, and several other fatalities reported in North Carolina Sunday pushed the overall death toll to at least 91 people across several states.

Supplies were being airlifted to the region around the isolated city. Buncombe County Manager Avril Pinder pledged that she would have food and water into Ashville — which is known for its arts, culture and natural attractions — by Monday.

“We hear you. We need food and we need water,” Pinder said on a Sunday call with reporters. “My staff has been making every request possible to the state for support and we’ve been working with every single organization that has reached out. What I promise you is that we are very close.”

Officials warned that rebuilding from the widespread loss of homes and property would be lengthy and difficult. The storm upended life throughout the Southeast. Deaths also were reported in Florida, Georgia, South Carolina and Virginia.

North Carolina Gov. Roy Cooper predicted the toll would rise as rescuers and other emergency workers reached areas isolated by collapsed roads, failing infrastructure and widespread flooding.

He implored residents in western North Carolina to avoid travel, both for their own safety and to keep roads clear for emergency vehicles. More than 50 search teams spread throughout the region in search of stranded people.

President Joe Biden described the impact of the storm as “stunning” and said he would visit the area this week as long as it does not disrupt rescues or recovery work.

Hurricane Helene roared ashore late Thursday in Florida’s Big Bend region as a Category 4 hurricane with 140 mph winds. A weakened Helene quickly moved through Georgia, then soaked the Carolinas and Tennessee with torrential rains that flooded creeks and rivers and strained dams.

There have been hundreds of water rescues, including in rural Unicoi County in East Tennessee, where dozens of patients and staff were plucked by helicopter from a hospital rooftop Friday.

More than 2 million homeowners and other utility customers were still without power Sunday night. South Carolina had the most outages and Gov. Henry McMaster asked for patience as crews dealt with widespread snapped power poles.

“We want people to remain calm. Help is on the way, it is just going to take time,” McMaster told reporters outside the airport in Aiken County.

The storm unleashed the worst flooding in a century in North Carolina. One community, Spruce Pine, was doused with over 2 feet of rain from Tuesday through Saturday.

Jessica Drye Turner in Texas had begged for someone to rescue her family members stranded on their rooftop in Asheville amid rising floodwaters. “They are watching 18-wheelers and cars floating by,” Turner wrote in an urgent Facebook post on Friday.

But in a follow-up message Saturday, Turner said help had not arrived in time to save her parents, both in their 70s, and her 6-year-old nephew. The roof collapsed and the three drowned.

“I cannot convey in words the sorrow, heartbreak and devastation my sisters and I are going through,” she wrote.

Biden on Saturday pledged federal government help for Helene’s “overwhelming” devastation. He also approved a disaster declaration for North Carolina, making federal funding available for affected individuals.