Thick smoke blanketing the Ulladulla CBD is coming from a bushfire at Croobyar, which started on Sunday afternoon.
The fire is being contained by National Parks and Wildlife Services (NPWS) with ground crews and two water bombing helicopters.
A Rural Fire Service spokesman said they had crews assisting national parks firefighters with the fire.
“It is still burning, NPWS have two helicopters working the fire edges and there are containment lines in place,” he said.
“There will be a lot of smoke lying around the area.”
The cause of the fire is not yet known, but property is not affected.
“There is currently no property under threat,” the RFS spokesman said.
“If people see unattended fires, call triple zero if they are concerned.
“If the smoke is bad, stay indoors, close your doors and windows, and keep smoke out.”
RFS crews are also on the scene of a fire on Monkey Mountain Road, which reignited on Monday night.
A High Fire Danger rating is expected to be in place on Wednesday, August 15, because of the dry conditions and forecast winds.