Body parts were discovered along train tracks in Elmhurst on Saturday, according to police.
A man walking along the Long Island Rail Road line near 43rd Avenue and Judge Street came across a plastic bag.
The man, said to be homeless, had been collecting cans but alerted authorities when he found the bag of body parts, according to police.
When the authorities arrived, they uncovered two additional bags after combing the area.
They had been dumped in an overgrown area near the tracks.
The parts, which included a skull with hair, a torso and leg bone, could not be determined to belong to a man or woman as they were so badly decomposed.
The age of the individual and cause of death are also unknown.
The NYPD said it is awaiting further review by the medical examiner, which may take some time
The police would not say if they believe the remains are connected to any unsolved crimes.