A large storage shed at a Wairarapa vineyard has been damaged by fire overnight.

A Fire Service spokeswoman said the blaze broke out just before 11pm at the Murdoch James Estate Winery in a building that housed tractors.

The 250sq m building was well ablaze when eight fire crews from Martinborough and surrounding volunteer brigades arrived at the vineyard.

No one was injured and the fire was contained to the building.

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Fire safety officers are investigating the cause of the blaze.