UPDATE, 11am: Firefighters say the Delacombe fire was most likely caused by a workplace accident at a car wreckers. Two workers said they arrived at work to see the fire burning out of control about 9.45am. Ballarat City, Lucas and Sebastopol fire brigades attended the blaze, taking about 20 minutes to bring it under control. There were no injuries recorded. Firefighters were forced to fight the blaze with breathing apparatus due to the chemicals in the air. Senior Station Officer John Carmody put out a warning to other people to be careful given the warmer months approaching. It was the second serious fire of the morning, with a house also destroyed in Hillcrest, near Snake Valley about 8am today. EARLIER, 10.30am: Firefighters were called to fight a large fire in the Delacombe industrial zone this morning. At least six CFA tankers battled&nbsp;the blaze at the Laidlaw Drive structure, with the road blocked to traffic. The fire was first reported about 10am and took about 20 minutes to bring under control. A lot of smoke was visible in the area as the blaze&nbsp;burned out-of-control. It seems there have been numerous cars go up in flames at a wreckers. The CFA has issued the following alert:&nbsp; “There is currently no threat to the community, but you should continue to stay informed and monitor conditions.” It is not yet known&nbsp;how the fire started, although police are in the area. WorkSafe is also expected to attend. More to come.