A Lincoln village allotment association is offering a cash reward to people who come forward with information after three sheds were set on fire.
Lincolnshire Police first received reports of a fire to sheds in Potterhanworth at 6.40am on Monday, September 14.
A number of other sheds were broken into and the allotment association is now prepared to give money to any witnesses who help police with the arrest and conviction of those responsible.
Anyone with information should contact Lincolnshire Police on 101, quoting incident number 21 of September 14.
Alternatively, report the crime anonymously by contacting Crimestoppers on 0800 555 111.