Ballarat firefighters were busy with a number of incidents overnight.
Firefighters were called to a Delacombe property about 6pm last night, to reports of a shed fire.
Upon their arrival, the 8 x 10 metre shed was fully involved.
A spokesperson said three breathing apparatus crews conducted an internal attack, bringing the fire under control about 15 minutes later.
Fire investigators are at the scene this morning, determining what caused the fire.
Meanwhile, just before 11pm, firefighters were called to reports a dirt bike was on fire in Sebastopol.
Crews brought the fire, which had spread to the grass, under control within minutes.
Police were called due to suspicious circumstances.
Anyone with information is urged to contact Crime Stoppers on 1800 333 000 or to file a confidential report online at www.crimestoppers.com.au