Some 6.5 million homes in Florida are under power after Hurricane Irma was hit by Hurricane Irma, which left a lot of damage in a number of Caribbean islands and Cuba before arriving in the United States.
Relief efforts continue along with the work of engineers to restore power in more than two-thirds of state homes.
The islands of the Florida Keys archipelago and areas west of the state bore the lion's share of Hurricane Irma's losses.
The storm eased when Florida's western coasts swept through the night, but Miami and other urban areas were badly hit by flooding.
US officials have warned that the state on the brink of a "humanitarian crisis."
At least four people were killed by the cyclone, whose rating was reduced to a tropical storm after it was ranked Sunday in the fourth division, media said.
The hurricane left at least 37 people dead in the Caribbean.
"The return of people to their homes will take some time," Florida Governor Rick Scott said, according to the Miami Herald website.
There are roads where you can not drive, everyone has to wait patiently until we finish our work, "the governor said after inspecting damage caused by the cyclone in an air tour.
Hurricane Irma has so far passed through 10 countries in the Caribbean, killing at least 28 people there.
US President Donald Trump agreed to declare Florida a major disaster area and send emergency federal aid, describing the hurricane as a "big monster."
At 0600 GMT, the epicenter of the hurricane was 40 km (25 miles) northeast of Tampa, according to the National Hurricane Center.
The Tampa Bay area, home to some 3 million people, has not suffered a major hurricane since 1921.
Hurricane Erma is expected to weaken into a tropical storm over the northern region of Florida or southern Georgia later on Monday, but the center of the hurricane will continue to move over the western part of the Florida peninsula, the center said. Hurricane may regain strength
The epicenter of Hurricane Irma hit the western coasts of the Florida peninsula, with its strength dropping to Category III. US authorities have warned it may regain strength.
State authorities have ordered the evacuation of more than 6.3 million people from their homes for fear of endangering their lives.
Florida prepares for Irma and the population leaves their homes and rush to danger dormitories
Hurricane Irma: Caribbean islands are preparing to face a strong storm
Forecasts indicate that the hurricane continues in the Florida Keys area, which includes Key West. An official had warned that staying on islands was "like suicide".
Rick Scott, governor of Florida, told NBC's Today Show that although the authorities had prepared within weeks of Irma's arrival, the expectations of the hurricane were "very frightening." losses
Hurricane Irma is the worst hurricane in the Atlantic Ocean for 10 years and has already caused heavy losses in a number of Caribbean islands:
Cuba: Hurricane Katrina has caused "serious casualties", officials said, without giving further details, saying the number of casualties was not yet confirmed, AFP reported.
SAN FRANCISCO (Reuters) - Six of the 10 houses in Saint-Martin, an island owned by France and the Netherlands, have been severely damaged so far, French officials said. Officials also said nine people were killed and seven missing in French territory, while two were killed in the Netherlands.
Turks and Caicos Islands: The hurricane caused heavy losses, although not already identified.
Barbuda: It is said that the small island has become virtually free of the population, and the typhoon destroyed about 95 percent of the buildings. Gaston Brown, Prime Minister of Antigua and Barbuda, estimated the cost of reconstruction at $ 100 million, with one person confirmed dead.
Anguilla: The cyclone caused heavy casualties and the death of a person.
Puerto Rico: More than 6,000 people live in shelters as well as power cuts, and three people have been confirmed dead.
British Virgin Islands: There were reports of heavy casualties and five deaths.
US Virgin Islands: Heavy infrastructure losses, and four deaths.
Haiti and the Dominican Republic: affected by the cyclone, but the losses are not the severity of the concerns.