Police in New York were investigating a case after a human leg was found in Coney Island in Brooklyn. Other body parts were also reportedly found in the area.

Police believe more remains are likely stuck in a jetty next to the New York Aquarium, according to police sources.

“We think there may be more,” a source told the New York Post. “They can see it’s in [the rocks].”

Authorities were alerted to the body parts by a recreational diver. The diver spotted the parts Saturday. After police arrived, they tried recovering the remains, but conditions were too bad.

On Thursday, the New York Police Department reached the scene again and found a left leg stuck in the rocks near West Fifth Street, not far from the New York Aquarium. According to police sources, a set of keys were also found.

The other body parts were spotted nearby. However, sources said divers were unable to retrieve them. The retrieval process is likely to take place over the weekend.

Police have not yet determined the gender or identity of the body.

This is a developing story.

Human Leg, Body Parts Found Stuck In Jetty Near Coney Island Aquarium This is a representational image showing a crime scene tape at Salon Meritage in Seal Beach, california, on Oct. 12, 2011. photo: Getty images/Jonathan Alcorn