Police responding to a report of an odor coming from a Woodbury apartment found the unit soaked in gasoline and located three gallon-sized Molotov cocktails in the kitchen sink, authorities said.

Authorities evacuated the 48-unit Autumn Woods apartment building on Cooper Street on Sunday night after making the discovery and arrested the lone tenant of the fuel-drenched apartment, 57-year-old Ismael Rosado.

He’s charged with attempted arson, among other offenses.

Officers arrived around 7:30 p.m., met with Rosado and immediately smelled the strong odor coming from his first-floor apartment, according to an affidavit of probable cause.

They spotted clothing strewn around the floor that appeared to be soaked in gasoline. Woodbury Fire Department arrived and entered the apartment, where they found the Molotov cocktails — three gallon-sized bottles filled with gasoline with rags hanging out of them — in the sink, along with a 5-gallon container of fuel on the kitchen floor, and matches next to that container.

After making these discoveries, the entire four-story apartment building was evacuated and Rosado was placed under arrest.

The Gloucester County Hazmat team determined that “the entire apartment was soaked in gasoline,” and reported numerous gasoline containers and flammable chemical agents, several sets of matches, and gas-soaked towels and rags. The Camden County Bomb Squad was called in to secure the Molotov cocktails.

The other tenants were housed in a nearby hotel while environmental agencies responded to clean up the mess and render the apartment building habitable. No injuries were reported.

Residents at Autumn Woods apartments in Woodbury were evacuated Sunday after police found a unit soaked in gasoline. (Google)

Rosado was charged with attempted aggravated arson (second-degree), possession of a destructive device (the Molotov cocktails) with a purpose to use it unlawfully against the person or property of another (second-degree), possession of destructive devices (third-degree), unlawful possession of weapons (fourth-degree) and recklessly creating the risk of public inconvenience, annoyance or alarm by creating a hazardous or physically dangerous condition.

Authorities have not revealed a motive, but it’s not Rosado’s first time facing an arson charge.

He was indicted on an aggravated arson charge in 2016, after he was accused of starting a fire inside a trailer in Vineland. He pleaded guilty to fourth-degree criminal mischief and was sentenced to a year of probation, according to court records. The arson charge was dismissed.

Autumn Woods residents have returned to their apartments, police said.

Rosado was placed in Salem County Correctional Facility pending a detention hearing.

Matt Gray may be reached at mgray@njadvancemedia.com. Follow him on Twitter @MattGraySJT. Find NJ.com on Facebook. Have a tip? Tell us: nj.com/tips. Get the latest updates right in your inbox. Subscribe to NJ.com’s newsletters.