Arson could be the cause of several wind-driven brush fires that burned on New York’s Long Island over the weekend, injuring two firefighters and sending large smoke plumes into the air, officials said.

An arson investigation is underway after a series of brush fires on Long Island in New York injured at least two firefighters as flames consumed hundreds of acres in Suffolk County over the weekend.

The last of four blazes that began in Suffolk County on Saturday has been put out, but Long Island and the Hudson Valley still faced a high fire risk on Sunday, officials said.

The state Division of Homeland Security and Emergency Services warned that wind gusts up to 40 mph were likely, complicating efforts to douse flames.

Firefighters in New York have knocked down a dwindling brush fire in a wooded stretch of Long Island but officials say high wind gusts could leave the region vulnerable to additional blazes

At least two commercial structures have burned down, Suffolk County officials said. One firefighter suffered second-degree burns in the blazes.

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.

New York Gov. Kathy Hochul declared a state of emergency on Saturday as crews battled brush fires on Long Island. She said 100,000 N95 masks will be sent to the impacted area.