A woman’s dismembered body was found in a park in eastern Brooklyn on Monday evening, the police said.

According to a New York Police Department official, the woman’s head and torso were found about 15 feet off a walkway in Canarsie Park, near East 86th Street and Seaview Avenue. The body was naked and facedown with no legs or arms attached, the official said. It was found under shrubbery, but it was not clear whether it had been deliberately placed there to conceal it.

A passer-by saw the body, went home, called the police, and returned to the park around 6:10 p.m. to direct officers to where he had seen it, the official said. Investigators were looking into who the woman was and how long her body had been there.

Robert Clouden, a Canarsie resident, said he had seen the body while walking his dog on Monday morning but thought it was a doll.