A body has been found inside a razed home on the NSW South Coast where fires raged on Thursday, bringing the state's bushfire death toll to 25.

Key points: Police were called to the destroyed home in Bodalla after concerns were raised for the occupant

Police were called to the destroyed home in Bodalla after concerns were raised for the occupant It is believed the remains are those of a 59-year-old male

It is believed the remains are those of a 59-year-old male An unconfirmed number of properties were wiped out by intense bushfire on the South Coast yesterday

Police said officers found the remains Friday morning in a burnt-out house on Bumbo Road, Bodalla, south-west of Moruya.

They attended after concerns were raised for the occupant.

While the body has not yet been formally identified, it is believed to be that of a 59-year-old man.

Detectives, police rescue and specialist forensic officers are currently on the scene with the NSW Rural Fire Service (RFS) and a crime scene has been established.

Yesterday was a tragic day for the firefighting community after three American aerial specialists were killed when their air tanker crashed in the Snowy Monaro region, west of Moruya.

Captain Ian McBeth, first officer Paul Hudson and flight engineer Rick DeMorgan Jr were on a firebombing operation just before their aircraft hit the ground.

The cause of the crash will be investigated by the Australia Transport Safety Bureau (ATSB).

Fire crews working at Moruya on the Far South Coast on Thursday. ( Facebook: Fire and rescue NSW Station 477 Ulladulla )

High temperatures and gusty winds made for extreme conditions yesterday and a number of bushfires were sparked around the South Coast.

An unconfirmed number of properties were destroyed in Moruya, Bermagui and possibly Bundanoon.

A truck rollover near Mogo around 11:00pm yesterday left six RFS firefighters with non-life threatening injuries.

New South Wales Deputy Premier John Barilaro said the volunteers were going above and beyond.

"You can see clearly it's tough conditions and our volunteers are going beyond the norm to try to protect community and lives," he said.

Two massive bushfires are still out of control on the far South Coast with residents around Moruya advised to monitor conditions.

The RFS says favourable conditions are expected across the weekend which will enable crews to establish more containment lines.

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