About 100 firefighters were called to put out a two-acre brush fire in a heavily wooded section of Prospect Park in Brooklyn on Friday night, prompting officials to warn residents to stay away as they used drones to identify hot spots.

The fire was in an “extremely dense” part of Prospect Park on a hill, and there were no structures nearby to be threatened, an FDNY official said.

A brush fire broke out in Brooklyn’s historic Prospect Park on Friday night amid a drought across the northeast. A passerby reported the fire at about 6:40 p.m., and firefighters battled the blaze for more than three hours,