Authorities kept swimmers away when the debris, intertwined with clothing and netting, came ashore in Avon on Sunday afternoon.
Chief lifeguard Timothy Gallagher tells the Asbury Park Press (http://on.app.com/MCw31D ) the debris contained matter that no one could identify.
Gallagher says rumors that a dead body was found spread on social media.
The debris was turned over to the Monmouth County Prosecutor's Office. More information is expected later in the week.
