BUENOS AIRES – A new wildfire in the southern Argentine province of Chubut is complicating efforts to control a blaze that has consumed nearly 1,700 hectares (4,195 acres) of native forest in Los Alerces National Park, authorities said Monday.

The second fire was spotted Sunday afternoon near the town of Trevelin, not far from the park.

Strong winds spread the flames and the blaze is out of control, Trevelin fire chief Eduardo Perez told the media Monday.

Inside Los Alerces, the frontline of the fire has been contained and all that remains is “an active spot in the tail,” senior park ranger Ariel Rodriguez told EFE.

More than 100 firefighters are at work inside the park, with support from a helicopter and an airplane.

The first fire broke out last Thursday in a remote area of Los Alerces, leading authorities to suspect arson.