Firefighters in New York knocked down a dwindling brush fire in a wooded stretch of Long Island on Sunday as officials warned that high wind gusts could leave the region vulnerable to additional blazes.

There is an investigation into possible arson after firefighters knocked down the last of four wildfires that began in Suffolk County on Saturday. Those blazes prompted a State of Emergency, and on Sunday crews were working to prevent any further spread.

Brush fires on New York's Long Island fanned by high winds have picked up quickly. The fires were spewing thick gray smoke into the sky and closed a major highway on Saturday.