CFA crews responded to a grass fire in Armstrong on Wednesday afternoon.
Three fire trucks and 15 firefighters from Ararat, Great Western and Moyston responded to the fire along the Western Highway near Petticoat Gully Road in Armstrong.
The crews brought the fire under control within 30 minutes.
"The fire was contained to between two and three hectares," CFA district operations officer Ian Morley said.
"Aircraft was called but did not take off because conditions were not dangerous enough and it was controlled quickly enough.
"No damage was done as a result and no one was injured."
Mr Morley said investigations were still ongoing into the cause of the fire.
"We believe it may have been a result of welding at the site," he said.
"Police were asked to attend to assist with the investigation. They will look into whether regulations were being complied with.
"It goes along with our zero tolerance policy so we cover all bases, including getting police involved to make sure the community is safe."
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