The NYPD is currently investigating two separate incidents in Brooklyn where groups of individuals were observed entering and exiting the city’s sewer system during the early hours of Friday morning. While authorities have confirmed both occurrences, it remains unclear if the events are connected or what prompted the unauthorized access to the underground infrastructure.
Incidents in Gravesend and Williamsburg
The first incident took place in Gravesend, where seven unidentified individuals entered a sewer near McDonald Avenue and Colin Place at approximately 11 p.m. Thursday. According to reports, the group emerged roughly three hours later, around 2 a.m. Friday.
Surveillance footage captured the individuals exiting the manhole and congregating near two parked vehicles, where they appeared to shed soiled clothing and clean themselves before departing. A similar situation unfolded in Williamsburg, where eight people entered a sewer near Heyward Street and Bedford Avenue at 1 a.m. And exited at 3:40 a.m. Before leaving in a vehicle.
Safety and Ongoing Investigations
Law enforcement officials conducted searches at both locations but reported finding nothing of note. The 62nd Precinct has publicly stated that the areas involved are safe and free of hazards.

Moving forward, investigators may look for patterns in surveillance data to determine if the two groups share an affiliation or a common motive. Because the sewer system presents significant risks—including the presence of noxious gases, unpredictable flooding and unstable surfaces—the investigation could expand to determine how these individuals bypassed safety protocols and whether additional security measures are required to prevent future unauthorized access.
Frequently Asked Questions
What risks are associated with entering the sewer system?
The city’s Department of Environmental Protection warns that entering sewers is dangerous due to the presence of noxious gases, the risk of sudden flooding, and the potential for unstable surfaces.
Were there any arrests made in connection to these events?
No, the NYPD has confirmed that no arrests were made in either the Gravesend or the Williamsburg incidents.
Is there a confirmed link between the two groups?
We see currently unclear whether the two incidents are connected, and the investigation remains ongoing.
What do you think could motivate individuals to enter the city sewer system under these conditions?
