EDISON - A stubborn brush fire kept firefighters busy for several hours in Edison Friday afternoon and burned dozens of acres of land.

The fire started around noon along Sweetwater Road near the Raritan Center office park in Edison.

Firefighters hosed down the area close to the rail line to prevent damage to the trains. Fire officials believed the trains parked nearby only contained plastic pellets.

Firefighting helicopters were also brought in to dump water on the flames.

The fire was contained around 4 p.m. Fire officials say that about 85 acres of land was burned due to the inaccessible marshy area of the fire.