Authorities in Fond du Lac County are searching for an arsonist who is responsible for five fires since last Thursday.
Four of the fires were reported Friday morning and at least three of those four appeared to have been set.
Police in Fond du Lac and North Fond du Lac are working with county deputies and the State Fire Marshal’s Office on the investigation.
The fires all took place within an area of about four square miles over a 30-hour period.
