The phrase "arson fire" refers to a fire that was intentionally set by someone on purpose, usually with the intention of causing damage or harm. Full definition
Norwegian author Gaute Heivoll's remarkable amalgam of mystery and memoir revolves around a series of arson fires set in a small village in southern Norway during May and June of 1978. (bookpage.com)
Explosives, illegal wildlife, propane leaks, accelerant (helpful in arson fires), and many other things can be taught to a search dog. (professorshouse.com)
It would have been much simpler to make a film that was either deeply sympathetic or scathing considering the subject: a series of arson fires set by Earth Liberation Front activists. (dotearth.blogs.nytimes.com)