This photo shows a view of a fire in Puren, Araucania region, Chile, on Saturday. AFP

The raging fires, according to an official briefing later on Saturday, have injured at least 979 people.

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The latest emergency order covers the southern region of La Araucania, next to the previously declared Biobio and Nuble regions, located near the middle of the South American country's long Pacific coastline.

"Weather conditions have made it very difficult to put out (the fires) that are spreading and the emergency is getting worse," Interior Minister Carolina Toha told reporters at a news conference in the capital Santiago.

Firefighters are seen during a fire in Puren, Araucania region, Chile on Saturday. AFP

"We need to reverse that curve," she added, noting that on Friday 76 more fires had ignited.

Another 16 fires sparked to life on Saturday, according to officials, as local temperatures in the Southern Hemisphere summer exceeded 104 degrees Fahrenheit (40 Celsius).

The sparsely populated three regions covered by the emergency orders are home to many farms, including where grapes, apples and berries are grown for export, plus extensive tracts of forest land.

Officials told reporters on Saturday that the governments of Spain, the United States, Argentina, Ecuador, Brazil and Venezuela have offered help, including planes and firefighters.

On Friday, an emergency-support helicopter in La Araucania crashed, killing its pilot and a mechanic, according to officials.

Firefighters prepare to fight flames caused by wildfires in Puren, Chile, on Saturday. AP

Authorities reported that 11 of the victims, or half of the casualties reported so far, died in the town of Santa Juana in Biobio, located some 310 miles (500 km) south of Santiago.

Since late last week, helicopters have dropped fire retardant over raging fires as billowing clouds of smoke obstruct roadways. Firefighters and local residents alike are struggling to contain the flames against the backdrop of a hazy orange-tinted sky.

The orders allow for the deployment of soldiers and additional resources to deal with the natural disaster.

Some 40,000 hectares (99,000 acres) have been burnt by the fires, according to official data released late on Friday, an area larger than the US city of Philadelphia.

National forestry agency CONAF reported on Saturday that 80 of 231 total wildfires are being actively battled, while 151 of them are under control.

Officials said that over 90% of the wildfires have been smothered before they spread beyond 12 acres (5 hectares).

On Friday, President Gabriel Boric cut short his summer vacation and traveled to Nuble and Biobio, pledging to make sure the affected areas receive all necessary support.

Boric also pointed to "signs" that some fires may have been started intentionally, but did not provide any additional details.

Reuters