A warning has been sent out after arsonists targeted a disused building.
Firebugs set alight the former Bonney Greenhalgh & Co Ltd property on Back Ashby Street, in Chorley on Thursday evening.
The incident happened at 8.50pm with two fire engines attending.
No immediate damage was caused to the eyesore.
Fire chiefs were at the scene for one hour.
The former steel merchants building is currently up for sale and has been on the market for one year.
A spokesman from Lancashire Fire Service, said: “We attended the scene relatively quickly.
“Two crews attended from Chorley Fire Station and put out what was used to set alight.
“They arrived before any of the frame structure had chance to set alight so the early arrival prevented any serious damage to the building.”
After the recent attack, Coun Bev Murray, borough ward councillor for the area feels something needs to be done to prevent more attacks.
She said: “Disused buildings can be a target but it’s very difficult to do something when it is privately owned.
“The council do have powers to ensure the safety of buildings like this.
“I know of other buildings that have been targeted including the Asda site when the QS Fashion building was still there.
“It is definitely an issue which needs highlighting and something needs to be done in the future.”
Lancashire Police were notified of the situation and are appealing for witnesses.
If anybody has any information then they are asked to call 101.