YAPHANK, N.Y. (CBSNewYork/AP) — Police have released a composite sketch of an unidentified victim whose remains were among 11 found along a remote New York beach highway last year.

The sketch released Saturday is of a woman whose partial remains were found along Ocean Parkway in April 2011.

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Suffolk County police say other remains of the same person were found separately on Blue Point Beach, Fire Island, in April 1996.

Investigators believe a possible serial killer is responsible for 10 of the bodies.

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The remains of the 11th victim — a 24-year-old woman named Shannan Gilbert — were found in late December. Authorities say Gilbert accidentally drowned.

Anyone with information on the investigation or the woman’s identity is asked to contact the Homicide Squad at 631-852-6392 or to call anonymously to Crime Stoppers at 1-800-220-TIPS. All calls will remain confidential.

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