According to a tweet by Montgomery County Fire and Rescue Services (MCFRS) PIO Pete Piringer at 11:44pm, one juvenile was arrested and charged with arson (later released to and in custody of parents) for starting a fire at a playground located on Fisher Avenue in Poolesville at approximately 5:20pm on Sunday.
A paper bag and sandwich container were set on fire underneath the playground equipment, igniting the rubber mulch and damaging much of the playground equipment. There was approximately $75k in damages. The video of the fire can be seen below, courtesy of by Pastries-by-Sarahon Facebook: