MULLICA Twp., N.J., (CBS) –A brush fire burning on an island near the Mullica River caused heavy smoke conditions in the area.

The fire was reported at about 1:30 p.m. Friday afternoon in Mullica Township.

Chopper 3 HD was over the scene as crews responded.

The New Jersey Forest Fire Service says since the fire was located on an island, crews could not get their vehicles out to the scene to fight the fire.

The Forest Service reported the fire as 90% contained at 4:30 p.m.

Mullica Township Police said there was heavy smoke reported in the area of McCormick Avenue in Sweetwater, Atlantic County.  As of 3:30 p.m., McCormick Avenue was closed for emergency personnel.  The fire in the area of McCormick Avenue was extinguished at about 6:30 p.m.

There were no evacuations and the brush fire posed no threat to residents.

Police recommend residents keep their windows and doors closed to prevent the smoke from entering their homes.

Police say residents in the area should expect smoky conditions throughout the night.  All roads, which were detoured, have been opened.

The fire is currently under investigation.