 This is WFMD News. A fire that damaged a public playground in Adamstown is suspected as arson. According to the Frederick News Post, Frederick County Fire and Rescue responded to Green Hill Park and the 2800 block of Decanter Drive at around 4.30 a.m. Saturday morning. Equipment was melted and charred. The fire caused $230,000 worth of damage. The Frederick County Sheriff's Office is investigating the incident.