Photo gallery: Hurricane Helene aftermath

Communities in Florida, Georgia and North Carolina are in mourning as a major storm continues to wreak havoc on the southeastern United States.

Helene, which hit Florida on Friday as a Category 4 hurricane but has since weakened into a tropical storm, is responsible for at least 20 deaths so far, as well as millions of dollars of damage.

“Officials across the region warned that the storm could cause more fatalities as it moves through,” per The Washington Post .

Amid the storm, flooding and blowing debris are not the only factors putting people at risk. Power outages also raise health concerns, especially for older Americans who rely on electronic medical devices.

More than 4 million customers were without power as of Friday morning, The Washington Post reported.

After making landfall in Florida, Helene moved on Friday morning toward Atlanta, where residents are dealing with intense rain and flooding.

Rain and flooding have also become major issues in the western Carolinas, where potentially deadly mudslides are expected, as the Deseret News previously reported.

Here’s a look at some of the damage the historic storm has caused so far.