Police are treating a huge fire which broke out at an abandoned house next to a petrol station as arson.
As previously reported, the fire was first spotted at around 4pm on Monday, September 2 on London Road in Boston.
Passers-by took videos which showed black smoke, balls of fire and debris coming from the front-facing upstairs window at the house.
Lincolnshire Fire and Rescue sent four crews and extinguished the blaze with three hose reel hets, one main jet, breathing apparatus, ladders, and small tools.
They said that all of the first floor was severely damaged by the fire and 75% of the roof space was also severely damaged.
There was moderate smoke damage to the rest of the building.
Lincolnshire Police attended the incident and has now said that they are treating it as arson.
Anyone with information is being urged to call 101, quoting Incident 301 of September 2.