Hot and windy conditions have fanned a number of fires across Victoria, including one at an old defence facility in Melbourne's inner west.
The fire at Maribyrnong broke out at the former munitions factory site on Cordite Avenue just before 1:00pm, consuming three disused buildings and spreading to grassland.
The Metropolitan Fire Brigade said crews initially did not know what was burning inside the buildings and were forced to wait for advice from the Defence Department before they could move in.
It was brought under control at 4:30pm.
In northern Victoria an emergency warning issued for an out-of-control grassfire near Whitfield, north-east of Mansfield, has been downgraded to a watch and act.
The fire is burning on Boggy Creek Rd, at Myrrhee, and prompted the warning for the communities of Hyem, Jarrott, King Valley, Myrrhee and Whitfield.
It is not yet under control and authorities said leaving was the safest option for those in the area. A relief centre has been set up at Moyhu Memorial Hall.
A large fire also broke out at a recycling facility at Laverton North, in Melbourne's west.
The MFB said the fire on Fitzgerald Road involved a pile of rubbish and plastic.
About 50 firefighters brought the fire under control on Wednesday night.
Grassfires also flared up across Victoria, including Red Hill South on the Mornington Peninsula, near Camperdown in the state's south-west, and Whittlesea, in Melbourne's north.
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