Two sewer mysteries unfolded overnight Friday in Brooklyn. Police say two groups of people were seen exiting manholes in Williamsburg and Gravesend. The incidents, around an hour apart, happened at opposite ends of the borough. Eight people were caught on video entering the sewer system at around 1:00am at Heyward Street and Bedford Avenue in Williamsburg, according to police. They say the group exited the sewer a short time later and took off in a car. More of this from News 12 Brooklyn.
