Hundreds of syringes have washed up on Jersey Shore beaches since last week’s tropical rainstorm — possibly caused by sewer runoff from New York City, according to reports.

FOUR SHOT DURING NEW JERSEY BACHELORETTE PARTY: REPORT

The needles were causing safety concerns from Sandy Hook to Long Branch as lifeguards and other workers have worked furiously over the past several days collecting the needles from the sand, NBC New York reported.

Patrollers at Monmouth Beach warned visitors of the dangers of possibly stepping on the syringes in the water, according to the outlet.

CRIME FORCES JERSEY SHORE TOWN TO CLOSE BEACH, BOARDWALK EARLY

New Jersey Department of Environmental Protection said the washed-up needles likely came from nearby sewage systems that were bombarded with rain last Thursday from Tropical Storm Elsa, NJ.com reported.

In 2018, New York City and North Jersey sewer systems were cited by state officials as the source of medical waste that flooded into the waters and later washed up on the Jersey Shore after another big storm, the reports said.

CLICK HERE TO GET THE FOX NEWS APP

Past syringes that were at New Jersey beaches were determined to be from diabetics who flushed them down the toilet, according to NBC New York.

This story first appeared in the New York Post.