Firefighters have contained 60% of a New Jersey wildfire that spread over 5,000 acres in the Wharton State Forest Saturday, June 14.

The blaze, dubbed the Mines Spung Wildfire, had burned through 4,200 acres at Wharton State Forest and was 40% contained as of 8:30 a.m. Saturday, the New Jersey Forest Fire Service said in an update. No injuries were immediately reported, but five structures remained under threat Saturday. The cause was still under investigation.