Forest fires in New York City are nearly unprecedented. None have been recorded in Prospect Park in recent history, and while wildfires are part of the natural cycle in some parts of the country, they’re extremely uncommon in urban forests.

A brush fire broke out Friday night in Prospect Park, in the Brooklyn borough of New York City, amid a drought that has been plaguing the northeastern U.S. for weeks.

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.