Vandals sprayed graffiti and caused other damage recently at Watchung School.
Officers were dispatched to the school on June 25 at about 9:45 a.m. and found town small areas of burnt plastic on the jungle gym tubes, and damage to the outside bathroom and utility building, police said.
There was new graffiti on a small jungle gym in the playground and the rear bathroom door on an outside brick utility building was damaged likely caused by a hammer hitting a dead bolt lock numerous times with a hammer, according to police.
Graffiti was also sprayed on the utility building's storage door, police said.
Anyone with information can contact the Juvenile Aid Bureau at 973-509-4751.