A massive volunteer firefighting force in the central province of Phu Yen has been battling a woodland blaze that has already consumed 100 hectares of woodland, in the last few days.
The fire broke out Friday evening in Phu Hoa District's Suoi Lanh Forest. More than 400 people rushed into the 700-hectare plantation, containing earleaf acacia and gum trees.
Strong winds later spread the fire to nearby Da Den forest.
More than 100 hectares of forest had burned to the ground, as of Sunday afternoon, local authorities said, adding that the full extent of the damage has yet to be calculated.
Ha Trung Khang, chairman of the Phu Hoa District People's Committee, said the fire has yet to be curbed since firefighters can only access the blaze on foot.
"The forests are located in hilly terrain, so the firemen haven't been able to get heavy firefighting equipment to the site," he said. "They've had to fight the fire by hand."
On Sunday evening, several exhausted rescuers emerged from the forest with singed clothing and hair but they were rescued in time.
Local authorities are still investigating what caused the fire.