PORTLAND, Maine — The Florida Keys, home to the world’s only permanent coral reef, will reopen Friday after a massive fire swept through its waters and threatened hundreds of homes and businesses.

The Florida Department of Environmental Protection said the evacuation centers were set up for the Palm Beach County, which includes Fort Lauderdale, Broward and Miami-Dade counties.

It also said evacuations would be in place for more than 3,000 of the city’s 1.4 million residents.

“There will be evacuations of homes in Fort Lauderdale and Miami Beach,” Florida Department spokeswoman Lauren Baca said.

The Palm Beach Post reports a wildfire near Palm Beach was also contained, but that it was still too hot to handle.

Authorities were urging residents to keep their pets and children at home.

A mandatory evacuation order was issued for a swath of coastal communities from Cape Canaveral to the Florida Keys.

For the entire state, evacuating will take effect Friday.

The Palm Bay Post reports more than 2,200 evacuees have been rescued from the coastal communities.

About 4,000 homes in the Broward, Palm Beach and Miami islands have been evacuated.

About 2,300 homes in Palm Beach were closed Wednesday and Thursday.