According to the update, two roadblocks have been removed, but sidewalks remain closed.
“Drivers traveling in the area should be on the lookout for smoke and fire monitors and fire trucks that may be operating on nearby roads.
The fire spread to four cities, Washington, Chamong, Hammonton and Mulica, the service said Monday.
The Wartton State Forest, 20 miles northwest of Atlantic City, is the largest single park in the New Jersey State Park System, with state park services.
No injuries were reported, according to their Twitter page.
Investigators have ruled out natural causes, officials said Monday.