No injuries were reported, but 18 structures are threatened, according to the tweet. “The protection of the structures exists and is provided by local volunteer fire services from the Atlantic, Burlington and Ocean counties,” said fire officials. “We thank them for their help.” Two roads and a number of hiking trails in the forest have been closed due to the fire, the fire service said. Relaxations are forecast for the weather conditions on Monday, with a maximum temperature of 80 and winds between 5-10 mph. The winds are expected to weaken in the afternoon and on Tuesday there is a small chance of rain. Located about 20 miles northwest of Atlantic City, the Wharton State Forest is the largest single parcel in New Jersey’s state park system, according to the state park service. CNN’s Robert Shackelford contributed to this report.