The building's interior was completely destroyed (Pic by Thomas Sisman)
A fire that destroyed a Cambridgeshire family's business premises was caused accidentally, investigators have said.
The blaze broke out in a factory unit at K2B Express Couriers and Logistics on Bury Lane Industrial Estate in Ramsey on Tuesday afternoon.
It was started when a grinding process overheated.
Thirty firefighters were called to the scene and neighbouring premises were evacuated because of a fear that acetylene gas cylinders might explode.
The fire destroyed all of the building's interior and its contents and one man was treated by paramedics for smoke inhalation.
Ronnie Booth, from Cambridgeshire Fire and Rescue Service, said: "Crews did an excellent job in containing the fire and in evacuating those nearby.
"A garage, a number of homes and vehicles are situated in close proximity.
"Firefighters managed to prevent the fire spreading to these buildings and vehicles while keeping the gas cylinders inside cool."