A shed on the baseball and softball field adjacent to Ring Factory Elementary School was vandalized sometime before Sunday.
Spray-paint appears to have been used on the structure.
Harford County Public Schools own the property, but share it with Harford County Parks and Recrection. The incident had not been reported to police as of Sunday night and county officials were not aware of the vandalism when reached by Patch Monday morning.
Anyone with information should call the Harford County Sheriff's Office at 410-836-5444.