SOLANO COUNTY (CBS13) — Firefighters got an uncommon call on Wednesday: a fire at a windmill.

The Montezuma Fire Protection District – along with the Suisun Fire Protection District and River Delta Fire District – responded to the Montezuma Hills yesterday afternoon and found a windmill on fire.

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Scene of the windmill fire. (Credit: Montezuma Fire Protection District)

Units quickly put out some spot fires in the vegetation around the structure, but the windmill continued to burn.

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With the windmill not spinning, firefighters tried to call for an air drop – but no helicopter units were available.

The flames were eventually contained, but the extent of the damage is unclear.

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Exactly what started the fire is under investigation.