There have been at least 38 deaths in North Carolina from Helene, Gov. Roy Cooper said in a briefing Wednesday afternoon, but he added he expects that number to grow.

Cooper spent Monday in western North Carolina and will be returning this afternoon, he said. First responders are continuing to rescue people and rush aid to the mountain communities.

More than 460,000 customers are without power down from a peak of more than a million, Cooper confirmed. There are more than 1,100 people being housed in 29 shelters and Cooper said he is still urging people to continue to stay off the roads.

"As heartbreaking as this damage has been, it’s encouraging to see the way people are working together," Cooper said. "I talked with a number of first responders and medical workers and volunteers who have left their won families to take care of our communities."

The National Guard currently have 800 guardsmen on duty with 275 vehicles. Almost 200,000 pounds of food and commodities were delivered out of the Asheville airport.

"I have committed to the governor that I will stay here until the event is stabilized and we will continue to bring in as many federal resources as needed, not just for the ongoing response, but as we move into recovery," Federal Emergency Management Agency Administrator Deanne Criswell said.

-ABC News' Alex Faul

Vice President and presidential nominee Kamala Harris will travel to Georgia on Wednesday to check out damage from Hurricane Helene, according to her office.

"Vice President Kamala Harris will travel to Georgia to survey the impacts of Hurricane Helene and receive an on-the-ground briefing about the continued recovery efforts that are occurring in communities across the state," according to a statement.

The statement did not say exactly where Harris will visit. President Joe Biden is set to visit North Carolina and South Carolina on Wednesday as well.

Harris' competitor in the presidential race, Donald Trump, visited Valdosta, Georgia, on Monday.

A public health emergency has been declared in South Carolina and Tennessee in the wake of Helene, according to the Department of Health and Human Services, following the same declarations in Florida, Georgia and North Carolina.

"We will do all we can to help officials in South Carolina and Tennessee respond to the health impacts of Hurricane Helene," HHS Secretary Xavier Becerra said in a statement. "We are working closely with state and local health authorities, as well as with our partners across the federal government, and stand ready to provide additional public health and medical support."

The Administration for Strategic Preparedness and Response deployed about 200 personnel to assist local officials with the storm's impacts to hospitals, nursing homes and other health care facilities, according to HHS.

The government's National Disaster Medical System has already deployed 29 trucks filled with equipment to help patients in health care facilities, many of which were totally knocked off the grid.

There have been more than 6,300 members of the National Guard mobilized to "support ongoing disaster relief, rescue, and recovery efforts in the aftermath of Hurricane Helene," according to Secretary of Defense Lloyd Austin.

There will be guardsmen from 12 different states moving into the South to help, especially in North Carolina.

"We continue to stand by the people and communities of North Carolina and all those affected," Austin added.

At least 72 people have died in hard-hit Buncombe County, North Carolina, which encompasses Asheville, Sheriff Quentin Miller said Thursday.

Over 200 others are missing, the sheriff said.

To the residents of Buncombe County, the sheriff said, "You are the heart of everything we do. We know these are hard times. But please know we're coming to get you."