Dense fog is slowing travel in southern New Jersey.

Fog on Interstate 295 in Greenwich (NJ DOT)

The National Weather Service has issued a dense fog advisory until 10 a.m. Monday for southern counties south of Interstate 195.

Visibility is less than a quarter mile in spots. The speed limit on the Commodore Barry Bridge has been reduced to 25 MPH due to the fog.

The Associated Press contributed to this story.