Residents in Polk County's Indian Lake Estates are under a mandatory evacuation order Friday evening as a large brush fire burns in the area.

UPDATE: 1 p.m. - FEMA has authorized federal funds to reimburse costs to Florida to fight the Indian Lake Estates fire in Polk County. This makes funding available to reimburse 75 percent of the eligible firefighting costs for managing, mitigating, and controlling the fires. 

“We are working closely with the state of Florida to monitor the numerous fires. We have approved emergency funding for the Indian Lakes Estate Fire to help save lives and protect property,” said FEMA Regional Administrator Gracia Szczech. 

UPDATE: 11 a.m. - Officials say the fire is 60 percent contained, however, with windy conditions today the situation is still dangerous. The fire has also spread to 700 acres. 

UPDATE: 7 a.m. - Fire officials reported Saturday morning that no homes were destroyed in the Indian Lake Estates fire that was previously thought Friday, although two sheds and some vehicles were damaged in the fire. Fire crews are currently assessing the fire to determine how much of it has been contained. Officials did say they believe the fire will ramp back later in the morning due to the weather conditions.  

UPDATE: 10:30 p.m. - Polk Fire Rescue is reporting around 800 homes are now threatened by the Indian Lake Estates fire. Multiple homes have already been lost, including two sheds.

The Florida Forest Service reports the fire is approximately 600 acres in size. A helicopter along with 13 tractors were used throughout the effort to knock down the flames.

The mandatory evacuation order will remain in place overnight. It will be re-assessed at noon Saturday.

Ponce de Leon Road, Magnolia Road, Red Grange Road, and Winter Haven Road -- all roads within Indian Lake Estates -- are currently closed to traffic.

Arson has not been ruled out as the source of this fire. If arson is the cause, it would be the eighth such fire started in this area in the last two weeks.

Polk County Fire Rescue investigators confirmed that the fire is considered "suspicious."

UPDATE: 7:09 p.m. - The Florida Forest Service is creating a fire line plow to stop the fire from reaching nearby homes.

The blaze has burned several structures in the region, according to Polk County Fire Rescue, and the agency is advising people to avoid the area.

The fire appears to be on the south side of U.S. Highway 630 beside Indian Lake Estates, Bay News 9 Meteorologist Brian McClure said. The wind from the southeast is blowing the smoke toward the northwest, toward the Lake Wales area.

This is a bad scenario for Indian Lake Estates as it will blow the fire toward the area, according to McClure.

The American Red Cross will open a shelter for evacuated residents at the First Presbyterian Church of Lake Wales at 8 p.m.. Polk Fire Rescue is advising residents hoping to stay at the shelter to enter at 305 E. Central Avenue in Lake Wales.

Firefighters advised the public via their Facebook page to avoid the area.

In February, 5,000 acres were damaged in the same area in the "630 Fire." County Road 630 and State Road 60 were closed, and a dozen structures were destroyed.

This is a developing story. Check back for updates.