Sewer Invaders: NYPD Hunts Mystery Groups Emerging From NYC Manholes at Night

Sewer Invaders: NYPD Hunts Mystery Groups Emerging From NYC Manholes at Night

New York City police are racing to solve an escalating mystery involving organized groups climbing in and out of the city's sewer system under cover of darkness, raising fresh questions about what they are really doing underground.

The investigation kicked into high gear after videos circulated on social media showing multiple groups of people ascending from maintenance holes across Brooklyn and Queens in recent weeks. Police first fielded a report around 11pm last Thursday when a witness spotted eight individuals removing a manhole cover near McDonald Avenue and Colin Place in Gravesend, Brooklyn. The same group resurfaced roughly three hours later, changed clothes beside parked cars, and drove away.

Just two hours after that incident, authorities received a second call from Williamsburg, Brooklyn. Video footage shows seven people climbing out of a maintenance hole near Heyward Street and Bedford Avenue, with the last member methodically closing the cover behind them. They too departed in a vehicle minutes later.

The pattern mirrors a May 5 incident in Astoria, Queens, where residents spotted three men in wetsuits opening a maintenance hole cover at 2am near 20th Avenue and 36th Street. Surveillance video captured them carrying flashlights and wearing hip waders as they descended into the darkness.

Astoria witness Aki Jakupovic told NBC New York the men looked suspicious. "Three random guys walking around in a strange suit, open the sewer, go in like Ninja Turtles," he said. "I was looking at them, they were looking at me, you know, I could tell they were up to no good. They went in there, closed the cover, like, you know, they were never here."

The NYPD response has been swift and thorough. The department's Emergency Services Unit officers descended into the sewer system to check for any hazards or left-behind materials. They found nothing dangerous. The city Environmental Protection Department, which oversees the sewer infrastructure, also conducted an inspection and reported no equipment damage.

Law enforcement officials remain puzzled about motivation. One senior investigator told NBC that authorities are exploring the theory that the groups are "scouring the system for valuables that get into the sewage." That explanation, while plausible, raises more questions than it answers about how organized these operations might be and whether anyone is coordinating the efforts.

No arrests have been made and no injuries reported. Police have not yet determined if the three incidents are connected, though the similarities in timing, group size, equipment, and execution suggest at least a loose pattern.

Author James Rodriguez: "This reads like urban legend come to life, but the video evidence is real and the NYPD's swift action shows they're taking it seriously. Whatever these groups are after down there, the city's sewer system has become a stage for something genuinely odd."

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