A SPARK from grinding equipment falling onto oily rags caused a garage firm in Wrangle.
The blaze in Wrangle Bank caused severe damange to the building and its contents, including three motobikes.
It was reported to Lincolnshire Fire and Rescue at 8.40pm on Saturday.
Three fire crews attened, one from Leverton and two from Boston.
Firefighters used two hose reels and four breathing apparatus were used in tackling the outbreak.