New York City authorities are investigating a series of strange incidents after surveillance cameras captured groups of people entering and exiting the city’s extensive underground sewer network during late-night hours.
The unusual sightings, recorded in Brooklyn and Queens, have left residents puzzled and prompted a police investigation into what officials are calling an ongoing underground mystery.
One of the most notable incidents occurred in the Williamsburg neighborhood of Brooklyn early Friday morning. Surveillance footage showed approximately seven individuals climbing out of a manhole in the middle of an intersection while traffic passed nearby. Some members of the group appeared to be carrying shovels, tools, and wearing headlamps. One individual narrowly avoided being hit by a vehicle while emerging from the manhole.
In another incident in Brooklyn’s Gravesend neighborhood, a group of about seven people was seen exiting a manhole around 2 a.m. According to police, the group had entered the sewer system around 11 p.m., spending roughly three hours underground. After emerging, they reportedly changed into clean clothes from vehicles parked nearby.
A separate surveillance video captured on May 5 in Queens showed three people wearing waterproof waders and protective gear opening a manhole cover and descending into the sewer. The final person closed the cover behind them as approaching vehicles slowed near the scene.
Aki Jakupovic, owner of a local auto detailing business whose cameras recorded the Queens incident, said he was unable to determine what the individuals were doing underground but expressed concerns that they may have been engaged in suspicious activities.
The New York City Department of Environmental Protection inspected the sewer infrastructure at the Brooklyn locations and confirmed there was no damage. Officials are continuing to investigate the Queens incident.
City authorities have strongly warned against entering sewer systems, emphasizing that doing so is both illegal and extremely dangerous. Officials noted that sewers can contain toxic gases, unstable surfaces, flood risks, and other potentially life-threatening hazards.
Police say they have found no evidence that the incidents pose a threat to public safety. No injuries or arrests have been reported, and the investigation remains ongoing.
The strange sightings have fueled widespread speculation among residents, with many questioning what could motivate groups of adults to spend hours navigating New York City’s underground sewer tunnels. For now, the mystery remains unsolved.
