BROOKLYN - More body parts have been discovered in Gravesend. 

Authorities say three teenagers uncovered skeletal remains of a chest, leg and elbow in Calvert Vaux Park. 

The remains were found near where a hand and foot turned up back in January. It's not clear if all the parts are from the same body or how long they have been there. 

The medical examiner's office is conducting an investigation, and police urge anyone with information to call Crime Stoppers at 1-800-577-TIPS.