Oxfordshire firefights are currently attending a "severe fire" in a series of industrial units just outside Watlington.
Around 60 fire-fighters from Oxfordshire, Buckinghamshire and Berkshire are on scene tackling the blaze and bringing it under control using water jets.
Acetylene, Propane and Oxygen cylinders stored within the buildings involved are providing "an additional hazard", crews said.
Safety cordons and exclusion areas have been set up. Fortunately the buildings are remote and members of the public are not affected.
Crews are likely to be on the scene throughout the remainder of the day.
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