UPDATE 7:35 a.m. (AP):Officials in the upper Florida Keys are allowing residents and business owners to return after Hurricane Irma.
People were able to return to Monroe County as of 7 a.m. EDT Tuesday.
In a Facebook posting, Monroe County officials said a yellow re-entry sticker or proof of residency or business ownership will be required.
County officials said a roadblock will be put around mile marker 74, where part of U.S. 1 was washed out by Hurricane Irma, which slammed into the state Sunday as a Category 4 storm. A road crew is expected to begin repairs Tuesday.
Officials warned returning residents that there are limited services available. Most areas are still without power and water and cellphone service is limited. Most gas stations in the Key Largo area are still closed.
Crews are working to clear U.S. 1, the only road that runs north/south through the Florida Keys.
County officials also said Mariners Hospital in Tavernier was expected to reopen Tuesday morning.
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Read more hurricane stories in the Hurricane Irma section.
UPDATE 7:35 a.m. (AP): More than 1.2 million customers in Georgia are without power after Irma swirled into the state.
Georgia Power will be starting to assess damages on Tuesday. The utility company says much of the state including coastal Georgia and metro Atlanta experienced the most outages after parts of the state received widespread damage caused by high winds and heavy rainfall.
Georgia Power says Fulton County currently has the most outages with 105,390.
By early Tuesday, Georgia Power has nearly 800,000 outages and EMC has around 466,000 customers without power.
The Metro Atlanta Rapid Transit Authority has resumed service Tuesday, but limited routes. The transportation company will have rail service running in 20-minute intervals.
UPDATE 7:35 a.m. (AP): Tropical Storm Irma no longer exists but she left plenty of problems in South Carolina.
More than 220,000 customers were without electricity early Tuesday. Duke Energy reported the biggest problems with 100,000 customers without service. The biggest problems were in Anderson and Greenville counties.
The South Carolina Electric Cooperatives report that about 63,000 customers are without service. The biggest problems are in Oconee and Charleston counties.
South Carolina Electric & Gas Co. had 58,000 customers without service early Tuesday. The major problems were in Charleston and Beaufort counties.
Many schools in South Carolina are closed or opening on a delayed schedule Tuesday.
At least one person died. Fifty-seven-year-old Charles Saxon was killed Monday afternoon by a tree limb while clearing debris outside his home in Calhoun Falls.
UPDATE 5:55 a.m. (AP): The airport for Fort Lauderdale, Florida, has re-opened Tuesday morning after closing as Hurricane Irma pounded the state.
Operations at the airport resumed at 4 a.m. EDT, but a check of the airport's website Tuesday morning showed many flights still canceled.
Meanwhile, the Miami International Airport said in a tweet that it will resume operations on a limited basis Tuesday. But the airport said passengers should contact their airlines to check on flight status before coming.
Six deaths in Florida have been blamed on Irma, which first hit the state Sunday as a powerful Category 4 hurricane.
UPDATE 3:45 a.m. (AP): Florida residents have begun to dig out in hurricane-scarred Florida and officials are slowly piecing together the scope of Irma's vicious path of destruction across the peninsula.
UPDATE: 4:40 p.m.
Tropical Storm Irma continues to slowly weaken as it moves over Southwestern Georgia, according to the National Hurricane Center.
UPDATE: 1:15 p.m. (AP): The Navy is sending an aircraft carrier to Key West to provide emergency services.
An update from Monroe County describes "an astounding recovery effort" taking place in the Florida Keys.
The USS Lincoln aircraft carrier will be anchored off Key West to provide emergency services, and three other Navy vessels are en route.
Officials said the National Guard has arrived in the island chain, and state transportation officials have cleared six of 42 bridges as safe for travel. However, roads remain closed because of debris, and fuel is still a concern. There is no water, power or cell service in the Keys.
UPDATE 12:30 p.m. (AP): Nearly 7.2 million homes and businesses are without power in multiple states as Tropical Storm Irma moves through the Southeast.
The vast majority were in Florida. The state's emergency management officials said the storm cut power to more than 6.5 million account holders across the state as of Monday afternoon.
Eric Silagy, the CEO of Florida Power & Light, said Irma caused the most widespread damage in the company's history. It affected all 35 counties in the utility's territory which is most of the state's Atlantic coast and the Gulf coast south of Tampa. The most extensive damage was likely in the Naples area, but a full assessment was ongoing. He said 19,500 electric workers have been deployed in the restoration effort.
Still, he said, it will take days for many people to be restored and, in some cases where the damage was extensive, weeks.
Meanwhile, Duke Energy reported Monday morning that more than 860,000 of the homes and businesses it serves in Florida were without power.
Georgia reported more than 570,000 homes and businesses without electricity, and there were 80,000 in South Carolina.
UPDATE 8:30 a.m. (AP): Irma is causing record-setting flooding in Jacksonville, Florida, as it moves over the state Monday on its way to southern Georgia.
The National Weather Service in Jacksonville says storm surge flooding exceeds the record set in 1965 during Hurricane Dora.
The city on Florida's northeastern Atlantic coast remains under a flash flood warning until 12:45 p.m. Monday.
Jacksonville Sheriff's officials warned residents not to drive through standing water, adding that in addition to flooding, there are trees and power lines down across the area.
Irma weakened to a tropical storm Monday morning, a day after hitting the state as a Category 4 hurricane.
UPDATE 8 a.m. (AP): Irma has weakened to a tropical storm as it moves over Florida toward southern Georgia.
The storm's maximum sustained winds decreased Monday morning to near 70 mph (110 kph). The U.S. National Hurricane Center says it's expected to weaken to a tropical depression by Tuesday afternoon.
Irma is centered about 105 miles (170 kilometers) north-northwest of Tampa, Florida, and is moving north-northwest near 18 mph (30 kph).
Irma hit southern Florida on Sunday as a Category 4 hurricane, bringing roof-ripping winds, gushing floodwaters and widespread power outages.
UPDATE 7:45 a.m. (AP) Winds and rain from Hurricane Irma have moved into South Carolina and officials are warning residents to be very careful throughout the day.
A hurricane watch is in effect Monday from Edisto Beach into Florida. A storm surge warning and a tropical storm warning are in effect from near Georgetown into Florida.
A flash flood warning is in effect along the southern coast of South Carolina, where more than 40,000 were ordered to evacuate barrier islands.
The storm surge could reach 6 feet (2 meters), especially from late morning to mid-afternoon. Up to 6 inches (15 centimeters) of rain is also possible.
Wind gusts of up to 60 mph (97 kph) are expected along the South Carolina coast. Forecasters say tornadoes are also possible.
South Carolina Electric & Gas reported more than 13,000 customers without service Monday morning.
UPDATE 6:45 a.m. (AP): More than 120 homes were being evacuated in Orange County, just outside Orlando, as floodwaters from Hurricane Irma started to pour in. No injuries have been reported.
A few miles away, 30 others had to be evacuated when a 60-foot sinkhole opened up under an apartment building. No injuries were reported in that incident.
More than 3.3 million homes and businesses across Florida lost power, and utility officials said it will take weeks to restore electricity to everyone.
The National Hurricane Center says the center of Irma is inland nearing Lakeland east of Tampa, still a Category 2 hurricane.
UPDATE 5:00 p.m.
The Associated Press contributed to this story.
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