Manhole mystery: Brooklyn sewer divers likely on the hunt for stuff you’ve flushed down the drain, sources say

A group of individuals entering manholes in Brooklyn are believed to be scavengers searching for valuables flushed down drains, according to police sources. Videos of the activity sparked conspiracy theories, but authorities confirmed no evidence of terrorism or other criminal intent. Similar incidents occurred previously, including an April 2025 arrest of three men for the same behavior.