Crews battle large brush fire in Pennsville, Salem County

PENNSVILLE, New Jersey (WPVI) -- Crews are battling a large brush fire this weekend in Pennsville, Salem County.

Black smoke could be seen billowing from across the river in Delaware.

The 2-alarm fire started at Fort Mott State Park around 3 p.m. Saturday.

As of Sunday, the fire was 85 percent contained and had burned 50 acres.

Officials say no structures are threatened by the flames.

The cause of the fire remains under investigation.