A Country Fire Service volunteer has been killed in a tree falling incident on a fireground in South Australia's south east.
The volunteers were fighting a blaze at Coles, near Lucindale.
In a statement, the CFS said another volunteer was seriously injured in the incident, and has been taken to hospital.
"Family and other personnel have been informed and are being offered support at this time," the statement read.
"The safety and wellbeing of our people is our highest priority and our thoughts are with our CFS family at this time.
"We are obtaining more information and will provide another update shortly."
Earlier on Friday, South Australian Premier Steven Marshall expressed his gratitude to those fighting the fire.
"I do genuinely want to say thank you to every single person who works on the front line, we have had significant fires down in the south east, particularly around the Lucindale area in the past 48 hours," Mr Marshall said.
About 150 firefighters from South Australia and Victoria have been battling the blaze near Lucindale, about 350 kilometres south east of Adelaide.
The fire has been burning in a bluegum forest about 20km south of the township.
The fire was downgraded to an advice level last night with the CFS advising it was no longer a threat to life of property, however, it was was still burning out of control.
Authorities said people in the area needed to stay alert, monitor local conditions and decide what they would do if the situation changed.
The CFS said the fire had earlier broken containment lines and multiple spotfires had started to the west of the fireground.
Emergency messages were sent to locals at risk and ground crews were working to get to affected properties earlier on Thursday night.
