Around 40 firefighters were called to a workshop blaze in East End, near Lymington yesterday afternoon
Smoke and flames were issuing as New Forest crews were scrambled to the scene at 3.30pm.
A number of cylinders had to be removed from the building and cooled as firefighters extinguished the fire which caused significant damage.
One casualty was assessed and cleared at the scene by South Central Ambulance Service paramedics.
The incident was handed over to the owner with the stop message coming in at 7.16pm.
A crew returned this morning to conduct a reinspection of the scene.